A AegiFlow
CRITICALCVSS 9.6

CVE-2026-8959

CVE-2026-8959 updated by NVD

Modified
2026-10-16
Sources
nvd

Summary

Sandbox escape due to incorrect boundary conditions in the Widget: Win32 component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

References

Includes data from the National Vulnerability Database (NIST). NVD data is in the public domain; this page is not endorsed by NIST.

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