These pages are published after PatchSiren validates generated defensive summaries against stored public CVE and source evidence.
The CVE-2026-74944 vulnerability is a use-after-free issue in the DOM: Core & HTML component of Mozilla products, including Firefox and Thunderbird. This critical vulnerability was fixed in Firefox 154, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. Users should apply patches to prevent exploitation. The CVE record was published on 2026-08-18T13:17:30.98 [truncated]
A use-after-free vulnerability exists in the Graphics: Text component of Firefox, which was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. This vulnerability has a critical severity with a CVSS score of 9.8 and could potentially allow attackers to execute arbitrary code. Users of Firefox, Thunderbird, and their E [truncated]
Site isolation issue in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 154, Firefox ESR 115.39, Firefox ESR 140.14, Firefox ESR 153.1, Thunderbird 154, Thunderbird 140.14, and Thunderbird 153.1. The vulnerability relates to site isolation, a security feature that helps prevent malicious scripts from accessing sensitive data. Affected users and administrators should prioritize [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-08-04T13:17:36.680Z and has not been modified since then. This information disclosure vulnerability affects Firefox for Android and Firefox Focus for Android, patched in Firefox 153.0.3, with a CVSS score of 6.5 (Medium). Users and administrators should verify affected systems and apply patches. The vu [truncated]
CVE-2026-16411 is a critical vulnerability in Thunderbird 152, involving memory safety bugs that could potentially be exploited to run arbitrary code. This issue was resolved in Firefox 153 and Thunderbird 153. Users are advised to update to the latest versions to mitigate this vulnerability. The vulnerability affects Thunderbird 152 and earlier versions, emphasizing the need for immediate updates.
A critical vulnerability was found in the JavaScript Engine's JIT component. This issue was fixed in Firefox 153 and Thunderbird 153. Users should update to these versions or later to mitigate the vulnerability. The vulnerability could potentially allow for arbitrary code execution. It is essential for users of Firefox and Thunderbird, especially those who handle sensitive data or require high security st [truncated]
AI-assisted PatchSiren debrief based on the supplied source corpus. The CVE record was published on 2026-07-21T13:17:16.330Z and has not been modified since then. The NVD entry is currently Undergoing Analysis. This vulnerability affects the Security: PSM component, potentially impacting users of Firefox and Thunderbird. The vulnerability is due to an invalid pointer and was fixed in Firefox 153 and Thunderbird 153.
CVE-2026-16408 is an integer overflow vulnerability in the Audio/Video: Playback component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 153 and Thunderbird 153. The vulnerability has a CVSS score of 9.8, indicating a critical severity. Users of Firefox and Thunderbird should apply the patches to prevent exploitation of this vulnerability. The vulnerability allows attackers to potent [truncated]
CVE-2026-16407 is a mitigation bypass vulnerability in the DOM: Service Workers component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 153 and Thunderbird 153. The CVSS score for this vulnerability is 9.8, indicating a critical severity. Users of Firefox and Thunderbird should update to versions 153 to mitigate this vulnerability. The vulnerability allows for a mitigation bypass, wh [truncated]
A critical vulnerability, CVE-2026-16406, was found in the Networking component of Firefox and Thunderbird. The vulnerability has a CVSS score of 9.1 and was fixed in Firefox 153 and Thunderbird 153. This mitigation bypass vulnerability can have a significant impact on the security of affected systems. Users and administrators should be aware of the potential risks and take necessary precautions to preven [truncated]
CVE-2026-16405 is an information disclosure vulnerability in the Networking: WebSockets component of Mozilla Firefox, Firefox ESR, and Thunderbird. The vulnerability was fixed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. This vulnerability has a high CVSS score of 7.5, indicating a high severity. Users of these products should apply updates to prevent potential information [truncated]
A spoofing issue was discovered in the Address Bar component of Firefox and Thunderbird. The vulnerability, tracked as CVE-2026-16403, has been fixed in Firefox 153 and Thunderbird 153. Users are advised to update to the latest versions to mitigate the risk. This issue could potentially allow attackers to deceive users about the authenticity of websites, which could lead to phishing or other malicious activities.
CVE-2026-16401 is a critical vulnerability in the Data Loss Prevention component of Firefox and Thunderbird. This vulnerability allows for privilege escalation and was fixed in Firefox 153 and Thunderbird 153. The CVE record was published on 2026-07-21T13:17:15.470Z. The vulnerability has a CVSS score of 9.8 and a severity of CRITICAL. The weakness is classified as CWE-269. Affected users should update to [truncated]
A vulnerability in the DOM: Security component of Firefox and Thunderbird allows for information disclosure. The issue was addressed with the release of Firefox 153 and Thunderbird 153. This vulnerability has a high CVSS score of 7.5, indicating a high severity level. Users of Firefox and Thunderbird should update to versions 153 or later to address this vulnerability. The NVD entry is currently Undergoing Analysis.
A site isolation issue was found in the DOM: Navigation component of Firefox and Thunderbird. This vulnerability, classified as HIGH with a CVSS score of 7.5, allows attackers to potentially bypass site isolation protections. The issue was fixed in Firefox 153 and Thunderbird 153. Users of these products should update to the latest versions to mitigate this vulnerability. The vulnerability was reported by [truncated]
A site isolation issue was discovered in the Graphics component of Firefox and Thunderbird. The vulnerability, tracked as CVE-2026-16398, has been fixed in Firefox 153 and Thunderbird 153. Users are advised to update to the latest versions to mitigate the risk. This issue could potentially allow attackers to bypass site isolation, which is a security feature designed to prevent malicious scripts from acce [truncated]
A clickjacking issue was found in the WebExtensions component of Firefox for Android. This issue has been fixed in Firefox 153. The vulnerability has a CVSS score of 6.5 and a severity of MEDIUM. Users of Firefox for Android, particularly those who use WebExtensions, should apply the update to Firefox 153 to mitigate this vulnerability. To address this vulnerability, users should review and restrict WebEx [truncated]
The CVE-2026-16396 vulnerability is a critical privilege escalation issue affecting WebExtensions in Firefox, Firefox ESR, Thunderbird, and Thunderbird software. This vulnerability was addressed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. The issue has a CVSS Score of 9.8 and is considered critical. Users of these software products should apply patches immediately to preve [truncated]
A critical integer overflow vulnerability, CVE-2026-16395, was found in the Audio/Video component of Firefox and Thunderbird. This issue was patched in Firefox 153 and Thunderbird 153. The vulnerability has a CVSS score of 9.8, indicating critical severity. Users should update their browsers to prevent exploitation. The CVE record and NVD entry provide further details on this vulnerability.
CVE-2026-16394 is a mitigation bypass vulnerability in the DOM: Security component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 153 and Thunderbird 153. The CVSS score for this vulnerability is 9.1, indicating a critical severity. Users of Firefox and Thunderbird should update to version 153 to mitigate this vulnerability. The vulnerability allows attackers to bypass existing mitiga [truncated]
CVE-2026-16393 is a critical vulnerability in the Graphics: WebGPU component of Firefox and Thunderbird. The issue involves incorrect boundary conditions, which could potentially allow for arbitrary code execution or other malicious activities. This vulnerability was fixed in Firefox 153 and Thunderbird 153. Users of these products should update to the latest versions to mitigate this vulnerability. The C [truncated]
CVE-2026-16392 is a JIT miscompilation vulnerability in the JavaScript Engine's JIT component. The vulnerability was fixed in Firefox 153 and Thunderbird 153. This type of vulnerability could potentially allow for arbitrary code execution if exploited. Users of Firefox and Thunderbird should update to versions 153 to address this vulnerability. The vulnerability's impact is considered high, and users shou [truncated]
A vulnerability in the Storage: IndexedDB component of Firefox, Firefox ESR, Thunderbird, and Thunderbird could allow for information disclosure. This issue was addressed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. The CVE record was published on 2026-07-21T13:17:14.290Z and has not been modified since then. The NVD entry is currently Undergoing Analysis. Users of these pr [truncated]
A mitigation bypass vulnerability was discovered in the Enterprise Policies component of Firefox, Firefox ESR, and Thunderbird. This issue allows attackers to bypass existing mitigations, potentially leading to arbitrary code execution or other malicious activities. The vulnerability was addressed in Firefox 153, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13. Organizations should review thei [truncated]
CVE-2026-16389 is a critical vulnerability in the Libraries component of NSS, caused by incorrect boundary conditions and integer overflow. This vulnerability was fixed in Firefox 153 and Thunderbird 153. The issue affects users of these products, who should update to the latest versions to mitigate the risk. The CVE record was published on 2026-07-21T13:17:14.063Z and has not been modified since then. Th [truncated]
A critical vulnerability, CVE-2026-16388, was found in the DOM: Networking component of Firefox and Thunderbird. This sandbox escape issue was fixed in Firefox 153 and Thunderbird 153. The vulnerability has a CVSS score of 9.8 and is classified as CRITICAL. Users are advised to update to the latest versions to mitigate potential risks. The vulnerability affects users of Firefox and Thunderbird, especially [truncated]
Information disclosure vulnerability in Firefox and Thunderbird due to uninitialized memory in the Graphics: WebGPU component. This vulnerability was fixed in Firefox 153 and Thunderbird 153. The vulnerability has a CVSS score of 7.5 and is classified as HIGH severity. Affected users should update their browsers to the latest versions to prevent potential exploitation.
CVE-2026-16385 is an information disclosure vulnerability caused by uninitialized memory in the Graphics: WebGPU component of Firefox and Thunderbird. This vulnerability was fixed in Firefox 153 and Thunderbird 153. The vulnerability could potentially allow an attacker to access sensitive information. Users of Firefox and Thunderbird should update their browsers to the latest versions to mitigate this vul [truncated]
The CVE record for CVE-2026-16384 was published on 2026-07-21T13:17:13.560Z and has not been modified since then. The NVD entry is currently Undergoing Analysis. This vulnerability is caused by uninitialized memory in the Graphics: WebGPU component, leading to information disclosure. It was fixed in Firefox 153 and Thunderbird 153. Users of Firefox and Thunderbird should apply updates to prevent potential [truncated]
CVE-2026-16382 is a mitigation bypass vulnerability in the DOM: Service Workers component of Firefox and Thunderbird. The vulnerability was fixed in Firefox 153 and Thunderbird 153. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 9.8, indicating a critical severity level. Users of Firefox and Thunderbird should apply the security updates to prevent exploitation of this vulne [truncated]
