CVE-2026-6748 - Vulnerability Analysis

Overview

Mozilla Firefox < 150 and Firefox ESR < 140.10 contain an uninitialized memory vulnerability in the Audio/Video: Web Codecs component, letting attackers potentially access sensitive information, exploit requires no special privileges.

Severity & Score

Impact

Attackers can access uninitialized memory, potentially leading to information disclosure.

Mitigation

Update to Firefox 150 and Firefox ESR 140.10 or later.

References

• https://www.mozilla.org/security/advisories/mfsa2026-30/
• https://www.mozilla.org/security/advisories/mfsa2026-32/
• https://www.mozilla.org/security/advisories/mfsa2026-33/
• https://www.mozilla.org/security/advisories/mfsa2026-34/
• https://bugzilla.mozilla.org/show_bug.cgi?id=2022604

Related Resources

• Vulnerability Intelligence Dashboard
• Credential Scanner