HIGHCVSS 8.3

CVE-2026-109757

CVE-2026-109757 updated by NVD

Modified: 2026-10-17
Sources: nvd

Summary

Sandbox escape due to race condition in the Networking component. This vulnerability was fixed in Firefox 158, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.

References

https://nvd.nist.gov/vuln/detail/CVE-2026-109757

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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