CVE-2025-9179

CVE Details

Release Date:	2025-08-19
Impact:	Important	What is this?

Description

An attacker was able to perform memory corruption in the GMP process which processes encrypted media. This process is also heavily sandboxed, but represents slightly different privileges from the content process. This vulnerability affects Firefox < 142, Firefox ESR < 115.27, Firefox ESR < 128.14, Firefox ESR < 140.2, Thunderbird < 142, Thunderbird < 128.14, and Thunderbird < 140.2.

See more information about CVE-2025-9179 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.5
Vector String:	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Version:	3.1
Attack Vector:	Network
Attack Complexity:	High
Privileges Required:	None
User Interaction:	Required
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 10 (firefox)	ELSA-2025-14417	2025-08-25
Oracle Linux version 10 (thunderbird)	ELSA-2025-14844	2025-08-28
Oracle Linux version 8 (firefox)	ELSA-2025-14442	2025-08-25
Oracle Linux version 8 (thunderbird)	ELSA-2025-14743	2025-08-27
Oracle Linux version 9 (firefox)	ELSA-2025-14416	2025-08-25
Oracle Linux version 9 (thunderbird)	ELSA-2025-14640	2025-08-26