CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
Memory safety bugs present in Firefox ESR 115.25, Firefox ESR 128.12, Thunderbird ESR 128.12, Firefox ESR 140.0, Thunderbird ESR 140.0, Firefox 140 and Thunderbird 140. 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. This vulnerability was fixed in Firefox 141, Firefox ESR 115.26, Firefox ESR 128.13, Firefox ESR 140.1, Thunderbird 141, Thunderbird 128.13, and Thunderbird 140.1.
AnalysisAI
Remote code execution in Mozilla Firefox (ESR 115.x through 115.25, 128.x through 128.12, 140.0, regular 140) and Thunderbird (ESR 128.12, 140.0, regular 140) via memory safety bugs (CWE-119 buffer overflow). Attackers can execute arbitrary code by delivering crafted web content that triggers memory corruption when a user interacts with malicious pages or emails. CVSS 8.8 (High) reflects network-based attack requiring user interaction but no authentication. Vendor-released patches available: Firefox 141, Firefox ESR 115.26/128.13/140.1, Thunderbird 141/128.13/140.1. EPSS data not provided; no public exploit identified at time of analysis, though Mozilla notes evidence of memory corruption suggesting exploitability with effort.
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External POC / Exploit Code
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