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Exploited vulnerabilities (CISA KEV)
CVEs with exploitation confirmed by CISA (Known Exploited Vulnerabilities), with required actions and deadlines.
CVE-2024-9680
Critical · 9.8
KEV Urgent · 79 Public exploit Ransomware CWE-416 Oct 9, 2024
Mozilla Firefox Use-After-Free Vulnerability
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.
CVE-2023-5217
High · 8.8
KEV High · 62 Public exploit CWE-787 Sep 28, 2023
Google Chromium libvpx Heap Buffer Overflow Vulnerability
Heap buffer overflow in vp8 encoding in libvpx in Google Chrome prior to 117.0.5938.132 and libvpx 1.13.1 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
CVE-2023-4863
High · 8.8
KEV High · 62 Public exploit CWE-787 Sep 12, 2023
Google Chromium WebP Heap-Based Buffer Overflow Vulnerability
Heap buffer overflow in libwebp in Google Chrome prior to 116.0.5845.187 and libwebp 1.3.2 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: Critical)
CVE-2022-26485
High · 8.8
KEV High · 61 Public exploit CWE-416 Dec 22, 2022
Mozilla Firefox Use-After-Free Vulnerability
Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.
CVE-2022-26486
Critical · 9.6
KEV High · 58 CWE-416 Dec 22, 2022
Mozilla Firefox Use-After-Free Vulnerability
An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.
CVE-2020-6820
High · 8.1
KEV High · 55 CWE-362 Apr 24, 2020
Mozilla Firefox And Thunderbird Use-After-Free Vulnerability
Under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
CVE-2020-6819
High · 8.1
KEV High · 54 CWE-362 Apr 24, 2020
Mozilla Firefox And Thunderbird Use-After-Free Vulnerability
Under certain conditions, when running the nsDocShell destructor, a race condition can cause a use-after-free. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Thunderbird < 68.7.0, Firefox < 74.0.1, and Firefox ESR < 68.6.1.
CVE-2019-17026
High · 8.8
KEV Urgent · 70 Public exploit CWE-843 Mar 2, 2020
Mozilla Firefox And Thunderbird Type Confusion Vulnerability
Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.
CVE-2019-11708
Critical · 10.0
KEV Urgent · 74 Public exploit CWE-20 Jul 23, 2019
Mozilla Firefox and Thunderbird Sandbox Escape Vulnerability
Insufficient vetting of parameters passed with the Prompt:Open IPC message between child and parent processes can result in the non-sandboxed parent process opening web content chosen by a compromised child process. When combined with additional vulnerabilities this could result in executing arbitrary code on the user's computer. This vulnerability affects Firefox ESR < 60.7.2, Firefox < 67.0.4, and Thunderbird < 60.7.2.
CVE-2019-11707
High · 8.8
KEV Urgent · 70 Public exploit CWE-843 Jul 23, 2019
Mozilla Firefox and Thunderbird Type Confusion Vulnerability
A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. This can allow for an exploitable crash. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 60.7.1, Firefox < 67.0.3, and Thunderbird < 60.7.2.
CVE-2016-9079
High · 7.5
KEV Urgent · 79 Public exploit CWE-416 Jun 11, 2018
Mozilla Firefox, Firefox ESR, and Thunderbird Use-After-Free Vulnerability
A use-after-free vulnerability in SVG Animation has been discovered. An exploit built on this vulnerability has been discovered in the wild targeting Firefox and Tor Browser users on Windows. This vulnerability affects Firefox < 50.0.2, Firefox ESR < 45.5.1, and Thunderbird < 45.5.1.
CVE-2015-4495
High · 8.8
KEV Urgent · 76 Public exploit CWE-346 Aug 7, 2015
Mozilla Firefox Security Feature Bypass Vulnerability
The PDF reader in Mozilla Firefox before 39.0.3, Firefox ESR 38.x before 38.1.1, and Firefox OS before 2.2 allows remote attackers to bypass the Same Origin Policy, and read arbitrary files or gain privileges, via vectors involving crafted JavaScript code and a native setter, as exploited in the wild in August 2015.
CVE-2013-1690
High · 8.8
KEV Urgent · 76 Public exploit CWE-119 Jun 26, 2013
Mozilla Firefox and Thunderbird Denial-of-Service Vulnerability
Mozilla Firefox before 22.0, Firefox ESR 17.x before 17.0.7, Thunderbird before 17.0.7, and Thunderbird ESR 17.x before 17.0.7 do not properly handle onreadystatechange events in conjunction with page reloading, which allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted web site that triggers an attempt to execute data at an unmapped memory location.
CVE-2013-1675
Medium · 6.5
KEV High · 52 CWE-665 May 16, 2013
Mozilla Firefox Information Disclosure Vulnerability
Mozilla Firefox before 21.0, Firefox ESR 17.x before 17.0.6, Thunderbird before 17.0.6, and Thunderbird ESR 17.x before 17.0.6 do not properly initialize data structures for the nsDOMSVGZoomEvent::mPreviousScale and nsDOMSVGZoomEvent::mNewScale functions, which allows remote attackers to obtain sensitive information from process memory via a crafted web site.
CVE-2010-3765
Critical · 9.8
KEV Urgent · 83 Public exploit CWE-119 Oct 27, 2010
Mozilla Multiple Products Remote Code Execution Vulnerability
Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before 3.1.6 and 3.0.x before 3.0.10, and SeaMonkey 2.x before 2.0.10, when JavaScript is enabled, allows remote attackers to execute arbitrary code via vectors related to nsCSSFrameConstructor::ContentAppended, the appendChild method, incorrect index tracking, and the creation of multiple frames, which triggers memory corruption, as exploited in the wild in October 2010 by the Belmoo malware.