GnuPG up to 2.4.8 Signed Message signature verification

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in GnuPG up to 2.4.8. Affected by this issue is some unknown functionality of the component Signed Message Handler. Executing a manipulation can lead to signature verification. This vulnerability appears as CVE-2025-68972. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in GnuPG up to 2.4.8 and classified as problematic. This vulnerability affects an unknown function of the component Signed Message Handler. The manipulation with an unknown input leads to a signature verification vulnerability. The CWE definition for the vulnerability is CWE-347. The product does not verify, or incorrectly verifies, the cryptographic signature for data. As an impact it is known to affect integrity. CVE summarizes:

In GnuPG through 2.4.8, if a signed message has \f at the end of a plaintext line, an adversary can construct a modified message that places additional text after the signed material, such that signature verification of the modified message succeeds (although an "invalid armor" message is printed during verification). This is related to use of \f as a marker to denote truncation of a long plaintext line.

This vulnerability was named CVE-2025-68972 since 12/27/2025. The exploitation appears to be difficult. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 280112 (Linux Distros Unpatched Vulnerability : CVE-2025-68972), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (280112), EUVD (EUVD-2025-205487) and CERT Bund (WID-SEC-2025-2928). Once again VulDB remains the best source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Open Source GnuPG
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • SUSE openSUSE
  • RESF Rocky Linux

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.8

VulDB Base Score: 3.7
VulDB Temp Score: 3.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 4.7
NVD Vector: 🔒

CNA Base Score: 5.9
CNA Vector (MITRE): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Signature verification
CWE: CWE-347 / CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 280112
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2025-68972

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

12/27/2025 CVE reserved
12/27/2025 +0 days VulDB entry created
12/28/2025 +0 days Advisory disclosed
01/25/2026 +28 days VulDB entry last update

Sourcesinfo

Status: Not defined

CVE: CVE-2025-68972 (🔒)
GCVE (CVE): GCVE-0-2025-68972
GCVE (VulDB): GCVE-100-338548
EUVD: 🔒
CERT Bund: WID-SEC-2025-2928 - GnuPG: Mehrere Schwachstellen

Entryinfo

Created: 12/28/2025 00:19
Updated: 01/25/2026 03:30
Changes: 12/28/2025 00:19 (59), 12/28/2025 00:36 (1), 12/29/2025 00:21 (2), 01/03/2026 10:33 (7), 01/05/2026 09:29 (2), 01/09/2026 22:16 (9), 01/10/2026 00:20 (1), 01/15/2026 19:42 (1), 01/20/2026 11:40 (1), 01/25/2026 03:30 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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