CVE-2025-68973

Published Dec 28, 2025 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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.)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-4437-1 gnupg2 security update
Ubuntu USN Ubuntu USN USN-7946-1 GnuPG vulnerability
Ubuntu USN Ubuntu USN USN-7946-2 GnuPG vulnerability
History
Type Values Removed Values Added
Weaknesses CWE-787
CPEs cpe:2.3:a:gnupg:gnupg:*:*:*:*:-:*:*:*
Type Values Removed Values Added
Description In GnuPG through 2.4.8, 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.) 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.)
Type Values Removed Values Added
Description In GnuPG through 2.4.8, 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. In GnuPG through 2.4.8, 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.)
References
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description In GnuPG through 2.4.8, 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.
First Time appeared Gnupg
Gnupg gnupg
Weaknesses CWE-675
CPEs cpe:2.3:a:gnupg:gnupg:*:*:*:*:*:*:*:*
Vendors & Products Gnupg
Gnupg gnupg
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mitre
Published
Updated
Apr 30, 2026, 3:55 AM
Reserved
Dec 28, 2025, 4:19 PM
Status
Modified
Published
Dec 28, 2025, 5:16 PM
Modified
Oct 13, 2026, 9:10 AM
Severity
Important
Public date
Dec 28, 2025, 4:19 PM