The CISA KEV Catalogue, Searchable
Every flaw attackers are known to be using: what it is, how bad, and what fixes it.
- Flaws on the list
- 1,779
- Added in 30 days
- 40
- Used in ransomware
- 361
- In web & server software
- 181
28 Mar 2022 Microsoft Internet Explorer Memory corruption
The Microsoft (1) JScript 5.8 and (2) VBScript 5.7 and 5.8 engines, as used in Internet Explorer 9 through 11 and other products, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Scripting Engine Memory Corruption Vulnerability," a different vulnerability than CVE-2016-0187.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 18 Apr 2022
- Weakness
- CWE-119
28 Mar 2022 Microsoft Client-Server Run-time Subsystem (CSRSS) Privilege escalation
The Client-Server Run-time Subsystem (CSRSS) in Microsoft Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 mismanages process tokens, which allows local users to gain privileges via a crafted application, aka "Windows CSRSS Security Feature Bypass Vulnerability."
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 18 Apr 2022
- Weakness
- CWE-264
28 Mar 2022 Microsoft Internet Explorer Memory corruption
Use-after-free vulnerability in Microsoft Internet Explorer 6 through 10 allows remote attackers to execute arbitrary code via a crafted web site that triggers access to a deleted object, as demonstrated by VUPEN during a Pwn2Own competition at CanSecWest 2013, aka "Internet Explorer Use After Free Vulnerability," a different vulnerability than CVE-2013-1308 and CVE-2013-1309.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 18 Apr 2022
- Weakness
- CWE-416
25 Mar 2022 Microsoft Windows Path traversal
Windows Print Spooler Elevation of Privilege Vulnerability
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft windows server 2022 10.0.20348.524, microsoft windows server 2019 10.0.17763.2565, microsoft windows server 2016 10.0.14393.4946, microsoft windows server 20h2 10.0.19042.1526, microsoft windows 11 21h2 10.0.22000.493 and 7 older
- CISA due date
- 15 Apr 2022
- Weakness
- CWE-40, CWE-1386
25 Mar 2022 Microsoft Windows Input validation flaw
The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka "Windows SMB Remote Code Execution Vulnerability." This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0144, CVE-2017-0145, and CVE-2017-0148.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 15 Apr 2022
- Weakness
- CWE-20
15 Mar 2022 Microsoft Windows Privilege escalation
An elevation of privilege vulnerability exists when the Windows Universal Plug and Play (UPnP) service improperly allows COM object creation, aka 'Windows UPnP Service Elevation of Privilege Vulnerability'.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-269
15 Mar 2022 Microsoft Windows Security flaw
An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka 'Microsoft Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1320, CVE-2019-1340.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
15 Mar 2022 Microsoft Windows Path traversal
An elevation of privilege vulnerability exists when Windows Error Reporting manager improperly handles hard links, aka 'Windows Error Reporting Manager Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1339, CVE-2019-1342.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-59
15 Mar 2022 Microsoft Windows Path traversal
An elevation of privilege vulnerability exists when the Windows AppX Deployment Server improperly handles junctions.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1215, CVE-2019-1278, CVE-2019-1303.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-59
15 Mar 2022 Microsoft Windows Path traversal
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-1130.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-59
15 Mar 2022 Microsoft Task Scheduler Path traversal
An elevation of privilege vulnerability exists in the way the Task Scheduler Service validates certain file operations. An attacker who successfully exploited the vulnerability could gain elevated privileges on a victim system. To exploit the vulnerability, an attacker would require unprivileged code execution on a victim system. The security update addresses the vulnerability by correctly validating file operations.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-59
15 Mar 2022 Microsoft Windows Path traversal
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-59
15 Mar 2022 Microsoft Windows Path traversal
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links, aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0836.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-59
15 Mar 2022 Microsoft Windows Authentication bypass
An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka "Microsoft Windows Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-287
15 Mar 2022 Microsoft Win32k Denial of service
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows Server 2008, Windows 7, Windows Server 2008 R2. This CVE ID is unique from CVE-2018-8124, CVE-2018-8164, CVE-2018-8166.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-404
15 Mar 2022 Microsoft Windows Memory corruption
The kernel-mode drivers in Transaction Manager in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2; Windows 7 SP1; Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1; Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allow local users to gain privileges via a crafted application, aka "Windows Elevation of Privilege Vulnerability."
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-119
15 Mar 2022 Microsoft Windows Security flaw
The kernel-mode drivers in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607 allow local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability," a different vulnerability than CVE-2016-3308, CVE-2016-3310, and CVE-2016-3311.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-264
15 Mar 2022 Microsoft Win32k Memory corruption
The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Win32k Memory Corruption Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2511, CVE-2015-2517, and CVE-2015-2518.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 5 Apr 2022
- Weakness
- CWE-119
3 Mar 2022 Microsoft Windows Path traversal
Windows Installer Elevation of Privilege Vulnerability
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft windows server 2022 10.0.20348.350, microsoft windows server 2019 10.0.17763.2300, microsoft windows server 2016 10.0.14393.4770, microsoft windows server 2004 10.0.19041.1348, microsoft windows 11 21h2 10.0.22000.318 and 7 older
- CISA due date
- 17 Mar 2022
- Weakness
- CWE-1386
3 Mar 2022 Microsoft Exchange Server Security flaw
An elevation of privilege vulnerability exists in Microsoft Exchange Server, aka "Microsoft Exchange Server Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 17 Mar 2022
3 Mar 2022 Microsoft Windows Memory corruption
The Secondary Logon Service in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, and Windows 10 Gold and 1511 does not properly process request handles, which allows local users to gain privileges via a crafted application, aka "Secondary Logon Elevation of Privilege Vulnerability."
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 24 Mar 2022
- Weakness
- CWE-264
3 Mar 2022 Microsoft Win32k Security flaw
Win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 allows local users to gain privileges via a crafted application, as exploited in the wild in April 2015, aka "Win32k Elevation of Privilege Vulnerability."
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 24 Mar 2022
- Weakness
- CWE-264
15 Feb 2022 Microsoft Internet Explorer Memory corruption
A remote code execution vulnerability exists in the way that the scripting engine handles objects in memory in Internet Explorer, aka 'Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-0739, CVE-2019-0753, CVE-2019-0862.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 15 Aug 2022
- Weakness
- CWE-843
15 Feb 2022 Microsoft Windows Memory corruption
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 15 Aug 2022
- Weakness
- CWE-787
10 Feb 2022 Microsoft SMBv3 Memory corruption
A remote code execution vulnerability exists in the way that the Microsoft Server Message Block 3.1.1 (SMBv3) protocol handles certain requests, aka 'Windows SMBv3 Client/Server Remote Code Execution Vulnerability'.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 10 Aug 2022
- Weakness
- CWE-119
10 Feb 2022 Microsoft SMBv1 Input validation flaw
The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka "Windows SMB Remote Code Execution Vulnerability." This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0144, CVE-2017-0146, and CVE-2017-0148.
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- siemens acuson sc2000 firmware 4.0e, siemens syngo sc2000 firmware 4.0e
- CISA due date
- 10 Aug 2022
- Weakness
- CWE-20
10 Feb 2022 Microsoft SMBv1 Input validation flaw
The SMBv1 server in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1; Windows Server 2012 Gold and R2; Windows RT 8.1; and Windows 10 Gold, 1511, and 1607; and Windows Server 2016 allows remote attackers to execute arbitrary code via crafted packets, aka "Windows SMB Remote Code Execution Vulnerability." This vulnerability is different from those described in CVE-2017-0143, CVE-2017-0145, CVE-2017-0146, and CVE-2017-0148.
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- siemens acuson sc2000 firmware 4.0e, siemens syngo sc2000 firmware 4.0e
- CISA due date
- 10 Aug 2022
- Weakness
- CWE-20
4 Feb 2022 Microsoft Win32k Memory corruption
Win32k Elevation of Privilege Vulnerability
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft windows server 2022 10.0.20348.469, microsoft windows server 2019 10.0.17763.2452, microsoft windows server 20h2 10.0.19042.1466, microsoft windows 11 21h2 10.0.22000.434, microsoft windows 10 1909 10.0.18363.2037 and 4 older
- CISA due date
- 18 Feb 2022
- Weakness
- CWE-787
28 Jan 2022 Microsoft Windows Path traversal
An elevation of privilege vulnerability exists when the Windows Background Intelligent Transfer Service (BITS) improperly handles symbolic links, aka 'Windows Background Intelligent Transfer Service Elevation of Privilege Vulnerability'.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 28 Jul 2022
- Weakness
- CWE-269, CWE-59
21 Jan 2022 Microsoft Win32k Denial of service
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2019, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 21 Jul 2022
- Weakness
- CWE-404
10 Jan 2022 Microsoft Win32k Security flaw
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'.
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 10 Jul 2022
15 Dec 2021 Microsoft Windows Security flaw
We have investigated reports of a spoofing vulnerability in AppX installer that affects Microsoft Windows. Microsoft is aware of attacks that attempt to exploit this vulnerability by using specially crafted packages that include the malware family known as Emotet/Trickbot/Bazaloader. An attacker could craft a malicious attachment to be used in phishing campaigns. The attacker would then have to convince the user to open the specially crafted attachment. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Please see the Security Updates table for the link to the updated app. Alternatively you can download and install the Installer using the links provided in the FAQ section. Please see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability. December 27 2023 Update: In recent months, Microsoft Threat Intelligence has seen an increase in activity from threat actors leveraging social engineering and phishing techniques to target Windows OS users and utilizing the ms-appinstaller URI scheme. To address this increase in activity, we have updated the App Installer to disable the ms-appinstaller protocol by default and recommend other potential mitigations.
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft app installer 1.16, microsoft app installer 1.11
- CISA due date
- 29 Dec 2021
17 Nov 2021 Microsoft Exchange Remote code execution
Microsoft Exchange Server Remote Code Execution Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 1 Dec 2021
- Weakness
- CWE-184, CWE-502
17 Nov 2021 Microsoft Windows Memory corruption
Win32k Elevation of Privilege Vulnerability
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft windows server 2022 10.0.20348.288, microsoft windows server 2019 10.0.17763.2237, microsoft windows server 2016 10.0.14393.4704, microsoft windows server 2004 10.0.19041.1288, microsoft windows 11 21h2 10.0.22000.258 and 7 older
- CISA due date
- 1 Dec 2021
- Weakness
- CWE-416
3 Nov 2021 Microsoft MSHTML Path traversal
Microsoft is investigating reports of a remote code execution vulnerability in MSHTML that affects Microsoft Windows. Microsoft is aware of targeted attacks that attempt to exploit this vulnerability by using specially-crafted Microsoft Office documents. An attacker could craft a malicious ActiveX control to be used by a Microsoft Office document that hosts the browser rendering engine. The attacker would then have to convince the user to open the malicious document. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. Microsoft Defender Antivirus and Microsoft Defender for Endpoint both provide detection and protections for the known vulnerability. Customers should keep antimalware products up to date. Customers who utilize automatic updates do not need to take additional action. Enterprise customers who manage updates should select the detection build 1.349.22.0 or newer and deploy it across their environments. Microsoft Defender for Endpoint alerts will be displayed as: “Suspicious Cpl File Execution”. Upon completion of this investigation, Microsoft will take the appropriate action to help protect our customers. This may include providing a security update through our monthly release process or providing an out-of-cycle security update, depending on customer needs. Please see the Mitigations and Workaround sections for important information about steps you can take to protect your system from this vulnerability. UPDATE September 14, 2021: Microsoft has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. Please see the FAQ for important information about which updates are applicable to your system.
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft windows server 2022 10.0.20348.230, microsoft windows server 2019 10.0.17763.2183, microsoft windows server 2016 10.0.14393.4651, microsoft windows server 2004 10.0.19041.1237, microsoft windows server 20h2 10.0.19042.1237 and 7 older
- CISA due date
- 17 Nov 2021
- Weakness
- CWE-22
3 Nov 2021 Microsoft Open Management Infrastructure (OMI) Authentication bypass
Open Management Infrastructure (OMI) Remote Code Execution Vulnerability
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft open management infrastructure 1.6.8-1
- CISA due date
- 17 Nov 2021
- Weakness
- CWE-1390
3 Nov 2021 Microsoft Windows Security flaw
Windows Common Log File System Driver Elevation of Privilege Vulnerability
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft windows server 2022 10.0.20348.230, microsoft windows server 2019 10.0.17763.2183, microsoft windows server 2016 10.0.14393.4651, microsoft windows server 2004 10.0.19041.1237, microsoft windows server 20h2 10.0.19042.1237 and 7 older
- CISA due date
- 17 Nov 2021
3 Nov 2021 Microsoft Windows Security flaw
Windows LSA Spoofing Vulnerability
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft windows server 2019 10.0.17763.2114, microsoft windows server 2016 10.0.14393.4583, microsoft windows server 2004 10.0.19041.1165, microsoft windows server 20h2 10.0.19042.1165
- CISA due date
- 17 Nov 2021
- Weakness
- CWE-749
3 Nov 2021 Microsoft Windows Privilege escalation
A remote code execution vulnerability exists when the Windows Print Spooler service improperly performs privileged file operations. An attacker who successfully exploited this vulnerability could run arbitrary code with SYSTEM privileges. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. UPDATE July 7, 2021: The security update for Windows Server 2012, Windows Server 2016 and Windows 10, Version 1607 have been released. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. If you are unable to install these updates, see the FAQ and Workaround sections in this CVE for information on how to help protect your system from this vulnerability. In addition to installing the updates, in order to secure your system, you must confirm that the following registry settings are set to 0 (zero) or are not defined (Note: These registry keys do not exist by default, and therefore are already at the secure setting.), also that your Group Policy setting are correct (see FAQ): HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows NT\Printers\PointAndPrint NoWarningNoElevationOnInstall = 0 (DWORD) or not defined (default setting) UpdatePromptSettings = 0 (DWORD) or not defined (default setting) Having NoWarningNoElevationOnInstall set to 1 makes your system vulnerable by design. UPDATE July 6, 2021: Microsoft has completed the investigation and has released security updates to address this vulnerability. Please see the Security Updates table for the applicable update for your system. We recommend that you install these updates immediately. If you are unable to install these updates, see the FAQ and Workaround sections in this CVE for information on how to help protect your system from this vulnerability. See also KB5005010: Restricting installation of new printer drivers after applying the July 6, 2021 updates. Note that the security updates released on and after July 6, 2021 contain protections for CVE-2021-1675 and the additional remote code execution exploit in the Windows Print Spooler service known as “PrintNightmare”, documented in CVE-2021-34527.
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft windows server 2022 10.0.20348.230, microsoft windows server 2019 10.0.17763.2029, microsoft windows server 2016 10.0.14393.4470, microsoft windows server 20h2 10.0.19042.1083, microsoft windows 11 22h2 10.0.22621.674 and 7 older
- CISA due date
- 3 May 2022
- Weakness
- CWE-269
3 Nov 2021 Microsoft Exchange Server Authentication bypass
Microsoft Exchange Server Elevation of Privilege Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 17 Nov 2021
- Weakness
- CWE-287
3 Nov 2021 Microsoft Exchange Server Server-side request forgery
Microsoft Exchange Server Remote Code Execution Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 17 Nov 2021
- Weakness
- CWE-918
3 Nov 2021 Microsoft Exchange Server Malicious file upload
Microsoft Exchange Server Security Feature Bypass Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 17 Nov 2021
- Weakness
- CWE-20, CWE-434
3 Nov 2021 Microsoft Exchange Server Path traversal
Microsoft Exchange Server Remote Code Execution Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 3 May 2022
- Weakness
- CWE-39
3 Nov 2021 Microsoft Exchange Server Security flaw
Microsoft Exchange Server Remote Code Execution Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 3 May 2022
3 Nov 2021 Microsoft Exchange Server Remote code execution
Microsoft Exchange Server Remote Code Execution Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 3 May 2022
- Weakness
- CWE-502
3 Nov 2021 Microsoft Exchange Server Server-side request forgery
Microsoft Exchange Server Remote Code Execution Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 3 May 2022
- Weakness
- CWE-918
3 Nov 2021 Microsoft Internet Explorer Memory corruption
Internet Explorer Memory Corruption Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 17 Nov 2021
- Weakness
- CWE-416
3 Nov 2021 Microsoft Win32k Memory corruption
Windows Win32k Elevation of Privilege Vulnerability
- What to do
- Apply updates per vendor instructions.
- CISA due date
- 17 Nov 2021
- Weakness
- CWE-787
3 Nov 2021 Microsoft Windows Access control flaw
Windows Print Spooler Remote Code Execution Vulnerability
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- microsoft windows server 2019 10.0.17763.1999, microsoft windows server 2016 10.0.14393.4467, microsoft windows server 2004 10.0.19041.1052, microsoft windows 10 2004 10.0.19041.1052, microsoft windows 10 1909 10.0.18363.1621 and 5 older
- CISA due date
- 17 Nov 2021
- Weakness
- CWE-285
3 Nov 2021 Microsoft Netlogon Weak cryptography
An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC). An attacker who successfully exploited the vulnerability could run a specially crafted application on a device on the network. To exploit the vulnerability, an unauthenticated attacker would be required to use MS-NRPC to connect to a domain controller to obtain domain administrator access. Microsoft is addressing the vulnerability in a phased two-part rollout. These updates address the vulnerability by modifying how Netlogon handles the usage of Netlogon secure channels. For guidelines on how to manage the changes required for this vulnerability and more information on the phased rollout, see How to manage the changes in Netlogon secure channel connections associated with CVE-2020-1472 (updated September 28, 2020). When the second phase of Windows updates become available in Q1 2021, customers will be notified via a revision to this security vulnerability. If you wish to be notified when these updates are released, we recommend that you register for the security notifications mailer to be alerted of content changes to this advisory. See Microsoft Technical Security Notifications.
- What to do
- Apply updates per vendor instructions.
- Fixed in (NVD)
- samba 4.12.7, samba 4.11.13, samba 4.10.18, synology directory server 4.4.5-0101
- CISA due date
- 3 May 2022
- Weakness
- CWE-330
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About the KEV Catalogue
What is the CISA KEV catalogue?
CISA's list of flaws attackers are known to be using. A flaw is added only with reliable evidence of attacks and a known fix.
Why does it matter more than the CVSS score?
Few CVEs are ever used in attacks. These are, so fix them first, whatever their score.
What is the due date?
The deadline for US federal agencies to fix it (BOD 26-04, which replaced BOD 22-01): as little as three days for recent entries. A sensible deadline for anyone.
Does it apply outside the US?
The deadlines don't, but the flaws are in software used everywhere. If you run it, it applies to you.
What does "used in ransomware" mean?
CISA knows ransomware groups have used the flaw.
How often is it updated?
CISA adds flaws several times a week. CVE Hawk checks hourly and alerts you within half an hour if it's your software.