CVE-2025-0243

CVE Details

Release Date:

2025-01-07

Description

Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 128.5, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6.

See more information about CVE-2025-0243 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 7 (firefox)	ELSA-2025-0132	2025-01-16
Oracle Linux version 8 (firefox)	ELSA-2025-0144	2025-01-10
Oracle Linux version 8 (thunderbird)	ELSA-2025-0281	2025-01-13
Oracle Linux version 9 (firefox)	ELSA-2025-0080	2025-01-10
Oracle Linux version 9 (thunderbird)	ELSA-2025-0147	2025-01-09