CVE-2026-12318

HighCVSS 7.3

Published: 16/06/2026(UTC)Updated: 17/06/2026(UTC)Translated: 18/06/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.22%

12th percentile — higher than 12% of all known CVEs

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

Organizations may be exposed to various attacks related to improper data handling, potentially leading to unauthorized access or system failures.

It is recommended to update to Firefox 152 or Thunderbird 152 to mitigate this vulnerability.

Original NVD description (English source)

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