CVE-2026-4710 - Vulnerability Analysis

Overview

Firefox < 149 and Firefox ESR < 140.9 contain a buffer overflow caused by incorrect boundary conditions in the Audio/Video component, letting attackers potentially cause memory corruption, exploit requires crafted input.

Severity & Score

Impact

Attackers can cause memory corruption, potentially leading to denial of service or code execution.

Mitigation

Update to Firefox 149 and Firefox ESR 140.9 or later.

References

• https://www.mozilla.org/security/advisories/mfsa2026-24/
• https://bugzilla.mozilla.org/show_bug.cgi?id=2016370
• https://www.mozilla.org/security/advisories/mfsa2026-20/
• https://www.mozilla.org/security/advisories/mfsa2026-22/
• https://www.mozilla.org/security/advisories/mfsa2026-23/

Related Resources

• Vulnerability Intelligence Dashboard
• Credential Scanner