CVE-2025-68972

MEDIUM EPSS 1.2%
Published Dec 27, 20256mo ago · Modified Jun 17, 20262w ago
4.7 CVSS 3.1
Medium
Find Similar
Published Dec 27, 2025 6mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
4.7
Exploitability
1.0
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
1.2% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-347

Affected Products 1

VendorProductVersionRange
gnupggnupg* ≤2.4.8

References 3

  • gpg.fail https://gpg.fail/formfeed
    Product
  • media.ccc.de https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i
    Product
  • news.ycombinator.com https://news.ycombinator.com/item?id=46404339
    Issue Tracking

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.