CVE-2026-2781

CVE Details

Release Date:	2026-02-24
Impact:	Moderate	What is this?

Description

Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, Thunderbird 140.8, and Firefox ESR 115.35.

See more information about CVE-2026-2781 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:	6.1
Vector String:	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Version:	3.1
Attack Vector:	Network
Attack Complexity:	Low
Privileges Required:	None
User Interaction:	Required
Scope:	Changed
Confidentiality Impact:	Low
Integrity Impact:	Low
Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 10 (firefox)	ELSA-2026-3361	2026-02-26
Oracle Linux version 10 (thunderbird)	ELSA-2026-3517	2026-03-02
Oracle Linux version 7 (firefox)	ELSA-2026-3984	2026-06-10
Oracle Linux version 8 (firefox)	ELSA-2026-3338	2026-02-26
Oracle Linux version 8 (thunderbird)	ELSA-2026-3515	2026-03-02
Oracle Linux version 9 (firefox)	ELSA-2026-3339	2026-02-26
Oracle Linux version 9 (thunderbird)	ELSA-2026-3516	2026-03-02