Moole Vulnerability Database

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High

CVE-2026-6750

Privilege escalation in the Graphics: WebRender component. This vulnerability was fixed in Firefox 150, Firefox ESR 115.35, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.

VectorNETWORK

PublishedApr 21, 2026, 13:16

Published Bysecurity@mozilla.org

Base Score

Score8.8

Affected Versions

No affected versions found.

References

https://bugzilla.mozilla.org/show_bug.cgi?id=2023407
https://www.mozilla.org/security/advisories/mfsa2026-30/
https://www.mozilla.org/security/advisories/mfsa2026-31/
https://www.mozilla.org/security/advisories/mfsa2026-32/
https://www.mozilla.org/security/advisories/mfsa2026-33/
https://www.mozilla.org/security/advisories/mfsa2026-34/

Weakness Type

CWE-269

CVSS Metrics

Base Score

8.8

Vector String

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Base SeverityHigh

Version

3.1

Attack Vector (AV)

NETWORK