Information Disclosure in Firefox Audio/Video Component
CVE-2026-7320

7.5HIGH

Key Information:

Vendor

Mozilla
Status
Firefox
Vendor
CVE Published:
28 April 2026

What is CVE-2026-7320?

An information disclosure vulnerability exists in the Audio/Video component of Firefox due to incorrect boundary conditions. This flaw can potentially allow unauthorized access to sensitive information. Mozilla has addressed this issue in the following updates: Firefox 150.0.1, Firefox ESR 140.10.1, and Firefox ESR 115.35.1. Users are encouraged to update their software to the latest versions to mitigate the risks associated with this vulnerability.

Affected Version(s)

Firefox 115.35.1

Firefox 140.10.1

Firefox 150.0.1

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2027433
https://www.mozilla.org/security/advisories/mfsa2026-35/
https://www.mozilla.org/security/advisories/mfsa2026-36/

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Xuehao Guo
.