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Findings

CVE-2026-4727

Denial-of-service in the Libraries component in NSS.

Published Mar 24, 2026 · updated Jun 17, 2026 · mozilla firefox

Denial-of-service in the Libraries component in NSS. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Mar 24, 2026 · NIST NVD

    Detected

    Denial-of-service in the Libraries component in NSS. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Denial-of-service in the Libraries component in NSS. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

Affected

  • cpe mozilla/firefoxversion unspecified
  • cpe mozilla/thunderbirdversion unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-4727

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-4727

    Denial-of-service in the Libraries component in NSS. This vulnerability was fixed in Firefox 149 and Thunderbird 149.

    nvd.nist.gov

References