CVE-2026-16349

CVE-2026-16349 : Same-origin policy bypass in the DOM: Navigation component affects Mozilla Firefox and Firefox ESR. Root cause is a bypass vulnerability in the Navigation component that can impact confidentiality, integrity, and availability (CVSS v3.1: 9.8, high) with network attack vector and ...

CVE-2026-16349

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

CVE-2026-16349 Same-origin policy bypass in the DOM: Navigation component

Same-origin policy bypass in the DOM: Navigation component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, Firefox ESR 140.13, Thunderbird 153, and Thunderbird 140.13...

PT-2026-61896

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description Information disclosure occurs due to uninitialized memory within the Graphics: WebGPU component. Uninitialized memory refers to a condition where a program uses a memo...

Mozilla -- Memory safety bugs

https://www.mozilla.org/en-US/security/advisories/mfsa2026-68/CVE-2026-16360 reports: Memory safety bugs present in Firefox ESR 115.37, Firefox ESR 140.12 and Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been...

Mozilla -- Memory safety bugs

https://www.mozilla.org/en-US/security/advisories/mfsa2026-68/CVE-2026-16411 reports Memory safety bugs present in Firefox 152. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code...

Mozilla Firefox ESR < 115.38

The version of Firefox ESR installed on the remote macOS or Mac OS X host is prior to 115.38. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2026-69 advisory. - We are aware that exploit code for this is public however we are not aware of any attacks in the wild...

PT-2026-61888

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A denial-of-service issue exists within the Graphics: WebGPU component. WebGPU is a modern API that allows web applications to access the GPU for hardware-accelerated...

PT-2026-61877

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A privilege escalation issue exists within the DOM: Workers component. Recommendations Update Firefox to version 153. Update Thunderbird to version 153...

PT-2026-61906

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A mitigation bypass exists within the DOM Security component. The Document Object Model DOM is a programming interface for web documents that represents the page so th...

PT-2026-61900

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A sandbox escape exists within the DOM networking component. A sandbox is a security mechanism used to isolate running applications from the rest of the system to...

PT-2026-61916

Name of the Vulnerable Software and Affected Versions Firefox for Android versions prior to 153 Description A spoofing issue exists in Firefox for Android, which could allow an attacker to deceive users by impersonating a legitimate site or entity. Recommendations Update to version 153...

PT-2026-61921

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description An invalid pointer exists within the Security: PSM component. A pointer is a variable that stores the memory address of another value. Recommendations Update Firefox t...

PT-2026-61910

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A site isolation issue exists within the Graphics component. Site isolation is a security mechanism that ensures web pages from different sites are processed in separa...

PT-2026-61924

Name of the Vulnerable Software and Affected Versions Firefox version 152 Firefox ESR version 140.12 Thunderbird version 152 Thunderbird ESR version 140.12 Description Memory safety bugs were identified that showed evidence of memory corruption. These issues could potentially be exploited to...

PT-2026-61913

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A privilege escalation issue exists within the Data Loss Prevention component. Recommendations Update Firefox to version 153. Update Thunderbird to version 153...

PT-2026-61915

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A spoofing issue exists within the Address Bar component, which could allow an attacker to deceive users by manipulating the displayed address. Recommendations Update...

PT-2026-61914

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description An integer overflow exists within the Graphics: ImageLib component. An integer overflow occurs when an arithmetic operation attempts to create a numeric value that...

PT-2026-61918

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description A mitigation bypass exists within the Networking component. Recommendations Update Firefox to version 153. Update Thunderbird to version 153...

PT-2026-61901

Name of the Vulnerable Software and Affected Versions Firefox versions prior to 153 Thunderbird versions prior to 153 Description An integer overflow occurs in the Libraries component of NSS due to incorrect boundary conditions. An integer overflow is a condition where an arithmetic operation...