CVE-2026-6766
HIGH7.5EPSS 0.05%Published: 4/21/2026Modified: 5/21/2026
Description
Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Affected packages (3)
- Debian/firefox-esrfrom 0, < 140.10.0esr-1~deb11u1
- Debian/nssfrom 0
- Debian/thunderbirdfrom 0, < 1:140.10.0esr-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |