CVE-2025-68973

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-68973
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.)

7.8 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 1.4 / Impact : 5.8

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References
Link Resource
https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306 Product
https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9 Patch
https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51 Patch
https://gpg.fail/memcpy Broken Link
https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i Issue Tracking
https://news.ycombinator.com/item?id=46403200 Issue Tracking
https://www.openwall.com/lists/oss-security/2025/12/28/5 Mailing List
http://www.openwall.com/lists/oss-security/2025/12/29/11 Mailing List Patch
https://lists.debian.org/debian-lts-announce/2026/01/msg00008.html
https://gpg.fail/memcpy Broken Link
Configurations

Configuration 1 (hide)

cpe:2.3:a:gnupg:gnupg:*:*:*:*:-:*:*:*
History

14 Jan 2026, 19:16

Type Values Removed Values Added
References
  • () https://lists.debian.org/debian-lts-announce/2026/01/msg00008.html -

07 Jan 2026, 14:45

Type Values Removed Values Added
First Time Gnupg gnupg
Gnupg
CPE cpe:2.3:a:gnupg:gnupg:*:*:*:*:-:*:*:*
CWE CWE-787
References () https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306 - () https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306 - Product
References () https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9 - () https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9 - Patch
References () https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51 - () https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51 - Patch
References () https://gpg.fail/memcpy - () https://gpg.fail/memcpy - Broken Link
References () https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i - () https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i - Issue Tracking
References () https://news.ycombinator.com/item?id=46403200 - () https://news.ycombinator.com/item?id=46403200 - Issue Tracking
References () https://www.openwall.com/lists/oss-security/2025/12/28/5 - () https://www.openwall.com/lists/oss-security/2025/12/28/5 - Mailing List
References () http://www.openwall.com/lists/oss-security/2025/12/29/11 - () http://www.openwall.com/lists/oss-security/2025/12/29/11 - Mailing List, Patch

02 Jan 2026, 21:15

Type Values Removed Values Added
References
  • () https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i -

31 Dec 2025, 04:15

Type Values Removed Values Added
Summary (en) 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.) (en) 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.)

29 Dec 2025, 19:15

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2025/12/29/11 -

29 Dec 2025, 18:15

Type Values Removed Values Added
Summary (en) 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. (en) 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
  • () https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51 -

29 Dec 2025, 17:15

Type Values Removed Values Added
References () https://gpg.fail/memcpy - () https://gpg.fail/memcpy -

28 Dec 2025, 17:16

Type Values Removed Values Added
New CVE
Information

Published : 2025-12-28 17:16

Updated : 2026-01-14 19:16

NVD link : CVE-2025-68973

Mitre link : CVE-2025-68973

CVE.ORG link : CVE-2025-68973

JSON object : View

Products Affected

gnupg

  • gnupg
CWE
CWE-675

Multiple Operations on Resource in Single-Operation Context

CWE-787

Out-of-bounds Write