CVE-2026-6772

Incorrect boundary conditions in the Libraries component in NSS

High · published April 21, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
38.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00457 · 38.6th percentile
Published
2026-04-21T12:41Z
EPSS history
Timeline
  • 21 APR 12:41Z
    Incorrect boundary conditions in the Libraries component in NSS
    cvelistv5