CVE-2026-2781
CRITICAL9.8EPSS 0.06%nss - security update
Published: 2/24/2026Modified: 4/28/2026
Description
Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35.
Affected packages (5)
- Debian/firefox-esrfrom 0, < 140.8.0esr-1~deb11u1
- Debian/nssfrom 0, < 2:3.61-1+deb11u5
- Debian/nssfrom 0, < 2:3.61-1+deb11u5
- Debian/nssfrom 0, < 2:3.87.1-1+deb12u2
- Debian/thunderbirdfrom 0, < 1:140.8.0esr-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |