CVE-2025-68973

Publication date 28 December 2025

Last updated 8 January 2026

Ubuntu priority

Cvss 3 Severity Score

Description

In GnuPG before 2.4.9, armor_filter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. (For ExtendedLTS, 2.2.51 and later are fixed versions.)

Why is this CVE high priority?

OOB write

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
gnupg2	25.10 questing	Fixed 2.4.8-2ubuntu2.1
	25.04 plucky	Fixed 2.4.4-2ubuntu23.2
	24.04 LTS noble	Fixed 2.4.4-2ubuntu17.4
	22.04 LTS jammy	Fixed 2.2.27-3ubuntu2.5
	20.04 LTS focal	Fixed 2.2.19-3ubuntu2.5+esm1
	18.04 LTS bionic	Fixed 2.2.4-1ubuntu1.6+esm2
	16.04 LTS xenial	Fixed 2.1.11-6ubuntu2.1+esm3
gnupg	16.04 LTS xenial	Fixed 1.4.20-1ubuntu3.3+esm3
gnupg	14.04 LTS trusty	Fixed 1.4.16-1ubuntu2.6+esm2

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Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Changed
Confidentiality	High
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N