Description

Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9.

INFO

Published Date :

2026-03-24T12:30:27.383Z

Last Modified :

2026-03-26T12:58:28.735Z

Source :

mozilla
AFFECTED PRODUCTS

The following products are affected by CVE-2026-4697 vulnerability.

Vendors Products
Mozilla
  • Firefox
  • Firefox Esr
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4697.

URL Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2020422 cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-4697 cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-4697 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-20/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-22/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-22/#CVE-2026-4697 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-23/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-24/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-24/#CVE-2026-4697 cve-icon
Login to claim this CVE

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact