Skip to content
fr Sign in
9.6 Critical

CVE-2026-7321 Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component

Description

Sandbox escape due to incorrect boundary conditions in the WebRTC: Networking component. This vulnerability was fixed in Firefox 150, Thunderbird 150, Firefox ESR 140.10.1, and Thunderbird 140.10.1.

Affected products and versions

Product Affected versions Fixed in
Firefox 150 earliest → < 150 150
Firefox 140.10 earliest → < 140.10.1 140.10.1
Thunderbird 150 earliest → < 150 150
Thunderbird 140.10 earliest → < 140.10.1 140.10.1

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Firefox

The 2221 CVEs of Firefox →
CVE-2026-120572 Incorrect boundary conditions in the Layout: Block and Inline component 8.8 High CVE-2026-118027 Frame poisoning in the Layout component 9.1 Critical CVE-2026-118026 Invalid pointer in the JavaScript: GC component 8.8 High CVE-2026-118025 Other issue in the SVG component 8.8 High
Track this CVE