CVE-2026-12318

7.3 HIGH

Published: June 16, 2026 Modified: June 16, 2026

Description

Incorrect boundary conditions in the Libraries component in NSS. This vulnerability was fixed in Firefox 152 and Thunderbird 152.

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Patch Vendor Advisory Exploit Third Party Advisory

Source: security@mozilla.org

Source: security@mozilla.org

Source: security@mozilla.org

3 reference(s) from NVD

CVSS v3 Score

7.3 / 10.0

EPSS (Exploit Probability)

0.2%

12th percentile

Exploitation Status

Not in CISA KEV

CWE-119