CVE-2025-9182

Denial-of-service due to out-of-memory in the Graphics: WebRender component

State: Published
Severity: 7.5 High
Published: Aug 19, 2025
Updated: Apr 13, 2026
Reserved: Aug 19, 2025

Description

Denial-of-service due to out-of-memory in the Graphics: WebRender component. This vulnerability was fixed in Firefox 142, Firefox ESR 140.2, Thunderbird 142, and Thunderbird 140.2.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	CISA-ADP

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
FirefoxMozilla	140.2 through 140.*Not affected 142 and laterNot affected
ThunderbirdMozilla	140.2 through 140.*Not affected 142 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1975837
https://www.mozilla.org/security/advisories/mfsa2025-64/
https://www.mozilla.org/security/advisories/mfsa2025-67/
https://www.mozilla.org/security/advisories/mfsa2025-70/
https://www.mozilla.org/security/advisories/mfsa2025-72/

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