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7.8
HIGH CVSS 3.1
CVE-2025-68973
GnuPG Out-of-Bounds Write Vulnerability
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.)

INFO

Published Date :

Dec. 28, 2025, 5:16 p.m.

Last Modified :

Jan. 14, 2026, 7:16 p.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-68973 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Gnupg gnupg
: Total Affected Vendor : 1 | Products : 1
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 8254265b-2729-46b6-b9e3-3dfca2d5bfca
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
Solution
Update GnuPG to a version that addresses the out-of-bounds write vulnerability.
  • Update GnuPG to a patched version.
  • Apply vendor-supplied security patches.
  • Restart affected services if necessary.
Public PoC/Exploit Available at Github

CVE-2025-68973 has a 5 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-68973.

URL 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
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-68973 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-68973 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
swesmith-repos/NVIDIA-AI-Blueprints__video-search-and-summarization.de6d933e

None

Jupyter Notebook Python Shell Makefile Svelte JavaScript TypeScript Dockerfile HTML CSS

Updated: 6 days, 12 hours ago
0 stars 0 fork 0 watcher
Born at : Jan. 29, 2026, 9:35 p.m. This repo has been linked 5 different CVEs too.
Profile Photo
stepanpelc/minimal-image-poc

None

Just Java

Updated: 1 week, 6 days ago
0 stars 0 fork 0 watcher
Born at : Jan. 22, 2026, 11:35 a.m. This repo has been linked 4 different CVEs too.
Profile Photo
RogerFelipeNsk/crabcache

CrabCache é um sistema de cache moderno escrito em Rust, projetado para ser mais previsível que Redis e Dragonfly, com melhor eficiência de memória e verdadeiro suporte multi-core.

Rust Dockerfile Shell

Updated: 1 month ago
2 stars 0 fork 0 watcher
Born at : Dec. 23, 2025, 5:15 p.m. This repo has been linked 1 different CVEs too.
Profile Photo
NVIDIA-AI-Blueprints/video-search-and-summarization

Blueprint for Ingesting massive volumes of live or archived videos and extract insights for summarization and interactive Q&A

llm rag vlm

Jupyter Notebook Python Shell Dockerfile HTML CSS Jinja Svelte JavaScript TypeScript

Updated: 6 days, 7 hours ago
396 stars 140 fork 140 watcher
Born at : Oct. 22, 2024, 6:43 a.m. This repo has been linked 5 different CVEs too.
Profile Photo
runwhen-contrib/helm-charts

All Public RunWhen Helm Charts - Managed by terraform

Shell Dockerfile Go Template

Updated: 2 weeks, 4 days ago
1 stars 0 fork 0 watcher
Born at : Sept. 18, 2023, 10:09 a.m. This repo has been linked 71 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-68973 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-68973 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Jan. 14, 2026

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2026/01/msg00008.html
  • Initial Analysis by [email protected]

    Jan. 07, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-787
    Added CPE Configuration OR *cpe:2.3:a:gnupg:gnupg:*:*:*:*:-:*:*:* versions up to (including) 2.4.8
    Added Reference Type CVE: http://www.openwall.com/lists/oss-security/2025/12/29/11 Types: Mailing List, Patch
    Added Reference Type MITRE: https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306 Types: Product
    Added Reference Type MITRE: https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9 Types: Patch
    Added Reference Type MITRE: https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51 Types: Patch
    Added Reference Type MITRE: https://gpg.fail/memcpy Types: Broken Link
    Added Reference Type CISA-ADP: https://gpg.fail/memcpy Types: Broken Link
    Added Reference Type MITRE: https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i Types: Issue Tracking
    Added Reference Type MITRE: https://news.ycombinator.com/item?id=46403200 Types: Issue Tracking
    Added Reference Type MITRE: https://www.openwall.com/lists/oss-security/2025/12/28/5 Types: Mailing List
  • CVE Modified by [email protected]

    Jan. 02, 2026

    Action Type Old Value New Value
    Added Reference https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i
  • CVE Modified by [email protected]

    Dec. 31, 2025

    Action Type Old Value New Value
    Changed 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.)
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Dec. 29, 2025

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2025/12/29/11
  • CVE Modified by [email protected]

    Dec. 29, 2025

    Action Type Old Value New Value
    Changed 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.)
    Added Reference https://github.com/gpg/gnupg/compare/gnupg-2.2.50...gnupg-2.2.51
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Dec. 29, 2025

    Action Type Old Value New Value
    Added Reference https://gpg.fail/memcpy
  • New CVE Received by [email protected]

    Dec. 28, 2025

    Action Type Old Value New Value
    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.
    Added CVSS V3.1 AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
    Added CWE CWE-675
    Added Reference https://github.com/gpg/gnupg/blob/ff30683418695f5d2cc9e6cf8c9418e09378ebe4/g10/armor.c#L1305-L1306
    Added Reference https://github.com/gpg/gnupg/commit/115d138ba599328005c5321c0ef9f00355838ca9
    Added Reference https://gpg.fail/memcpy
    Added Reference https://news.ycombinator.com/item?id=46403200
    Added Reference https://www.openwall.com/lists/oss-security/2025/12/28/5
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 7.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact