CVE-2026-109779

CVSS 4.2 (medium) · published 2026-10-13

Race condition in the Networking: DNS component. This vulnerability was fixed in Firefox 158 and Thunderbird 158.

Weakness: CWE-362

Source: NVD CVE-2026-109779

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=2072048
• https://www.mozilla.org/security/advisories/mfsa2026-106/
• https://www.mozilla.org/security/advisories/mfsa2026-109/

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