CVE-2026-6772
HIGH severity · CVSS 7.5 · CWE-754
7.5CVSS HIGH
Summary
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactHigh
Integrity impactNone
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected products we track (2)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://www.mozilla.org/security/advisories/mfsa2026-30/Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-31/Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-32/Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-33/Advisory
- https://www.mozilla.org/security/advisories/mfsa2026-34/Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=2026089