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CISA Known Exploited Vulnerabilities

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

Latest addition 10 Nov 2026. Checked 12 Nov 2026, 14:04 UTC. The catalogue in numbers ›

24 flaws matching "Linux", newest first. Clear

15 Oct 2024 Mozilla Firefox Memory corruption CVE-2024-9680 9.8 Ransomware

An attacker was able to achieve code execution in the content process by exploiting a use-after-free in Animation timelines. We have had reports of this vulnerability being exploited in the wild. This vulnerability affects Firefox < 131.0.2, Firefox ESR < 128.3.1, Firefox ESR < 115.16.1, Thunderbird < 131.0.1, Thunderbird < 128.3.1, and Thunderbird < 115.16.0.

What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed in (NVD)
mozilla firefox 131.0.2, mozilla firefox 128.3.1, mozilla thunderbird 128.3.1, mozilla firefox 115.16.1, mozilla thunderbird 115.16.0
CISA due date
5 Nov 2024
Weakness
CWE-416

NVD Record · Vendor Advisory · More on Ubuntu / Debian packages

9 Sep 2024 Linux Kernel Memory corruption CVE-2017-1000253 7.8 Ransomware

Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the "gap" between the stack and the binary.

What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed in (NVD)
linux kernel 4.0.2, linux kernel 3.19.7, linux kernel 3.18.14, linux kernel 3.16.35, linux kernel 3.14.41 and 4 older
CISA due date
30 Sep 2024
Weakness
CWE-119

NVD Record · More on Linux kernel

30 May 2024 Linux Kernel Memory corruption CVE-2024-1086 7.8 Ransomware

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660.

What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed in (NVD)
linux kernel 6.7.3, linux kernel 6.6.15, linux kernel 6.1.76, linux kernel 5.15.149
CISA due date
20 Jun 2024
Weakness
CWE-416

NVD Record

2 Nov 2023 Apache ActiveMQ Remote code execution CVE-2023-46604 9.8 Ransomware

The Java OpenWire protocol marshaller is vulnerable to Remote Code Execution. This vulnerability may allow a remote attacker with network access to either a Java-based OpenWire broker or client to run arbitrary shell commands by manipulating serialized class types in the OpenWire protocol to cause either the client or the broker (respectively) to instantiate any class on the classpath. Users are recommended to upgrade both brokers and clients to version 5.15.16, 5.16.7, 5.17.6, or 5.18.3 which fixes this issue.

What to do
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Fixed in (NVD)
apache activemq 5.18.3, apache activemq legacy openwire module 5.18.3, apache activemq 5.17.6, apache activemq legacy openwire module 5.17.6, apache activemq 5.16.7 and 3 older
CISA due date
23 Nov 2023
Weakness
CWE-502

NVD Record

30 Mar 2023 Samba Remote code execution CVE-2017-7494 9.8 Ransomware

Samba since version 3.5.0 and before 4.6.4, 4.5.10 and 4.4.14 is vulnerable to remote code execution vulnerability, allowing a malicious client to upload a shared library to a writable share, and then cause the server to load and execute it.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
samba 4.6.4, samba 4.5.10, samba 4.4.14, samba 4.4.0
CISA due date
20 Apr 2023
Weakness
CWE-94

NVD Record · More on Ubuntu / Debian packages

25 Aug 2022 WebRTC Memory corruption CVE-2022-2294 8.8 Ransomware

Heap buffer overflow in WebRTC in Google Chrome prior to 103.0.5060.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
google chrome 103.0.5060.114, apple ipados 15.6, apple iphone os 15.6, apple tvos 15.6, apple macos 12.5 and 5 older
CISA due date
15 Sep 2022
Weakness
CWE-122

NVD Record

9 Aug 2022 RARLAB UnRAR Path traversal CVE-2022-30333 7.5 Ransomware

RARLAB UnRAR before 6.12 on Linux and UNIX allows directory traversal to write to files during an extract (aka unpack) operation, as demonstrated by creating a ~/.ssh/authorized_keys file. NOTE: WinRAR and Android RAR are unaffected.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
rarlab unrar 6.12
CISA due date
30 Aug 2022
Weakness
CWE-22, CWE-59

NVD Record · More on Ubuntu / Debian packages

27 Jun 2022 Red Hat Polkit Memory corruption CVE-2021-4034 7.8 Ransomware

A local privilege escalation vulnerability was found on polkit's pkexec utility. The pkexec application is a setuid tool designed to allow unprivileged users to run commands as privileged users according predefined policies. The current version of pkexec doesn't handle the calling parameters count correctly and ends trying to execute environment variables as commands. An attacker can leverage this by crafting environment variables in such a way it'll induce pkexec to execute arbitrary code. When successfully executed the attack can cause a local privilege escalation given unprivileged users administrative rights on the target machine.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
siemens scalance lpe9403 firmware 2.0, polkit project polkit 121, siemens sinumerik edge 3.3.0
CISA due date
18 Jul 2022
Weakness
CWE-787

NVD Record

25 May 2022 Oracle Java Runtime Environment (JRE) Access control flaw CVE-2013-0422 9.8 Ransomware

Multiple vulnerabilities in Oracle Java 7 before Update 11 allow remote attackers to execute arbitrary code by (1) using the public getMBeanInstantiator method in the JmxMBeanServer class to obtain a reference to a private MBeanInstantiator object, then retrieving arbitrary Class references using the findClass method, and (2) using the Reflection API with recursion in a way that bypasses a security check by the java.lang.invoke.MethodHandles.Lookup.checkSecurityManager method due to the inability of the sun.reflect.Reflection.getCallerClass method to skip frames related to the new reflection API, as exploited in the wild in January 2013, as demonstrated by Blackhole and Nuclear Pack, and a different vulnerability than CVE-2012-4681 and CVE-2012-3174. NOTE: some parties have mapped the recursive Reflection API issue to CVE-2012-3174, but CVE-2012-3174 is for a different vulnerability whose details are not public as of 20130114. CVE-2013-0422 covers both the JMX/MBean and Reflection API issues. NOTE: it was originally reported that Java 6 was also vulnerable, but the reporter has retracted this claim, stating that Java 6 is not exploitable because the relevant code is called in a way that does not bypass security checks. NOTE: as of 20130114, a reliable third party has claimed that the findClass/MBeanInstantiator vector was not fixed in Oracle Java 7 Update 11. If there is still a vulnerable condition, then a separate CVE identifier might be created for the unfixed issue.

What to do
Apply updates per vendor instructions.
CISA due date
15 Jun 2022
Weakness
CWE-264

NVD Record

13 Apr 2022 Drupal Core Remote code execution CVE-2018-7602 9.8 Ransomware

A remote code execution vulnerability exists within multiple subsystems of Drupal 7.x and 8.x. This potentially allows attackers to exploit multiple attack vectors on a Drupal site, which could result in the site being compromised. This vulnerability is related to Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-002. Both SA-CORE-2018-002 and this vulnerability are being exploited in the wild.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
drupal 8.5.3, drupal 8.4.8, drupal 7.59
CISA due date
4 May 2022
Weakness
CWE-94

NVD Record

28 Mar 2022 Oracle Java SE Security flaw CVE-2013-2465 9.8 Ransomware

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 21 and earlier, 6 Update 45 and earlier, and 5.0 Update 45 and earlier, and OpenJDK 7, allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to 2D. NOTE: the previous information is from the June 2013 CPU. Oracle has not commented on claims from another vendor that this issue allows remote attackers to bypass the Java sandbox via vectors related to "Incorrect image channel verification" in 2D.

What to do
Apply updates per vendor instructions.
CISA due date
18 Apr 2022
Weakness
CWE-693

NVD Record

25 Mar 2022 PHP FastCGI Process Manager (FPM) Memory corruption CVE-2019-11043 9.8 Ransomware

In PHP versions 7.1.x below 7.1.33, 7.2.x below 7.2.24 and 7.3.x below 7.3.11 in certain configurations of FPM setup it is possible to cause FPM module to write past allocated buffers into the space reserved for FCGI protocol data, thus opening the possibility of remote code execution.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
php 7.3.11, php 7.2.24, php 7.1.33, tenable.sc 5.19.0
CISA due date
15 Apr 2022
Weakness
CWE-120

NVD Record · More on PHP

25 Mar 2022 Apache Tomcat Malicious file upload CVE-2017-12615 8.1 Ransomware

When running Apache Tomcat 7.0.0 to 7.0.79 on Windows with HTTP PUTs enabled (e.g. via setting the readonly initialisation parameter of the Default to false) it was possible to upload a JSP file to the server via a specially crafted request. This JSP could then be requested and any code it contained would be executed by the server.

What to do
Apply updates per vendor instructions.
CISA due date
15 Apr 2022
Weakness
CWE-434

NVD Record · More on Apache Tomcat

3 Mar 2022 Adobe Flash Player Security flaw CVE-2016-4117 9.8 Ransomware

Adobe Flash Player 21.0.0.226 and earlier allows remote attackers to execute arbitrary code via unspecified vectors, as exploited in the wild in May 2016.

What to do
The impacted product is end-of-life and should be disconnected if still in use.
CISA due date
24 Mar 2022

NVD Record

3 Mar 2022 Adobe Flash Player Security flaw CVE-2015-7645 7.8 Ransomware

Adobe Flash Player 18.x through 18.0.0.252 and 19.x through 19.0.0.207 on Windows and OS X and 11.x through 11.2.202.535 on Linux allows remote attackers to execute arbitrary code via a crafted SWF file, as exploited in the wild in October 2015.

What to do
The impacted product is end-of-life and should be disconnected if still in use.
CISA due date
24 Mar 2022

NVD Record

3 Mar 2022 Oracle Java SE Access control flaw CVE-2012-4681 9.8 Ransomware

Multiple vulnerabilities in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 6 and earlier allow remote attackers to execute arbitrary code via a crafted applet that bypasses SecurityManager restrictions by (1) using com.sun.beans.finder.ClassFinder.findClass and leveraging an exception with the forName method to access restricted classes from arbitrary packages such as sun.awt.SunToolkit, then (2) using "reflection with a trusted immediate caller" to leverage the getField method to access and modify private fields, as exploited in the wild in August 2012 using Gondzz.class and Gondvv.class.

What to do
Apply updates per vendor instructions.
CISA due date
24 Mar 2022
Weakness
CWE-284

NVD Record

3 Mar 2022 Oracle Java SE Access control flaw CVE-2012-1723 9.8 Ransomware

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 update 4 and earlier, 6 update 32 and earlier, 5 update 35 and earlier, and 1.4.2_37 and earlier allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Hotspot.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
redhat icedtea6 1.11.3, redhat icedtea6 1.10.8
CISA due date
24 Mar 2022
Weakness
CWE-284

NVD Record

3 Mar 2022 Oracle Java SE Memory corruption CVE-2012-0507 9.8 Ransomware

Unspecified vulnerability in the Java Runtime Environment (JRE) component in Oracle Java SE 7 Update 2 and earlier, 6 Update 30 and earlier, and 5.0 Update 33 and earlier allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Concurrency. NOTE: the previous information was obtained from the February 2012 Oracle CPU. Oracle has not commented on claims from a downstream vendor and third party researchers that this issue occurs because the AtomicReferenceArray class implementation does not ensure that the array is of the Object[] type, which allows attackers to cause a denial of service (JVM crash) or bypass Java sandbox restrictions. NOTE: this issue was originally mapped to CVE-2011-3571, but that identifier was already assigned to a different issue.

What to do
Apply updates per vendor instructions.
CISA due date
24 Mar 2022
Weakness
CWE-843

NVD Record

15 Feb 2022 Adobe Flash Player Memory corruption CVE-2018-15982 7.8 Ransomware

Flash Player versions 31.0.0.153 and earlier, and 31.0.0.108 and earlier have a use after free vulnerability. Successful exploitation could lead to arbitrary code execution.

What to do
The impacted product is end-of-life and should be disconnected if still in use.
CISA due date
15 Aug 2022
Weakness
CWE-416

NVD Record

1 Dec 2021 Apache Server-side request forgery CVE-2021-40438 9.0 Ransomware

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
siemens sinema remote connect server 3.1, siemens sinec nms 1.0.3
CISA due date
15 Dec 2021
Weakness
CWE-918

NVD Record · More on Apache httpd

3 Nov 2021 VMware ESXi and Horizon DaaS Memory corruption CVE-2019-5544 9.8 Ransomware

OpenSLP as used in ESXi and the Horizon DaaS appliances has a heap overwrite issue. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
vmware horizon daas 9.0.0.0
CISA due date
3 May 2022
Weakness
CWE-787

NVD Record

3 Nov 2021 Drupal Core Input validation flaw CVE-2018-7600 9.8 Ransomware

Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6, and 8.5.x before 8.5.1 allows remote attackers to execute arbitrary code because of an issue affecting multiple subsystems with default or common module configurations.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
drupal 8.5.1, drupal 8.4.6, drupal 8.3.9
CISA due date
3 May 2022
Weakness
CWE-20

NVD Record

3 Nov 2021 Exim Memory corruption CVE-2018-6789 9.8 Ransomware

An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.

What to do
Apply updates per vendor instructions.
Fixed in (NVD)
exim 4.90.1
CISA due date
3 May 2022
Weakness
CWE-119

NVD Record

3 Nov 2021 Adobe Flash Player Memory corruption CVE-2018-4878 7.8 Ransomware

A use-after-free vulnerability was discovered in Adobe Flash Player before 28.0.0.161. This vulnerability occurs due to a dangling pointer in the Primetime SDK related to media player handling of listener objects. A successful attack can lead to arbitrary code execution. This was exploited in the wild in January and February 2018.

What to do
The impacted product is end-of-life and should be disconnected if still in use.
Fixed in (NVD)
adobe flash player 28.0.0.161
CISA due date
3 May 2022
Weakness
CWE-416

NVD Record

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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.

Source: CISA Known Exploited Vulnerabilities catalogue. Summaries and scores from the NVD. CVE Hawk is not affiliated with CISA or the NVD.

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