Riskcovery

CVE-2026-4695

Incorrect boundary conditions in the Audio/Video: Web Codecs component

State
Published
Severity
7.5 High
Published
Mar 24, 2026
Updated
Jul 15, 2026
Reserved
Mar 23, 2026

Read the record on cve.org

Description

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

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCISA-ADP
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hredhat-SADP

Weaknesses

  • CWE-754 Improper Check for Unusual or Exceptional Conditions
  • CWE-131 Incorrect Calculation of Buffer Size

Affected Products

ProductVersions
FirefoxMozilla
  • 140.9 through 140.*Not affected
  • 149 and laterNot affected
ThunderbirdMozilla
  • 140.9 through 140.*Not affected
  • 149 and laterNot affected

References

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