CVE-2025-68972

MEDIUM

5.9

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.

CVE Details

CVSS v3.1 Score5.9

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published12/27/2025

Last Modified1/9/2026

Sourcenvd

Honeypot Sightings0

Affected Products

gnupg:gnupg

Weaknesses (CWE)

CWE-347

References

https://gpg.fail/formfeed(cve@mitre.org)

https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i(cve@mitre.org)

https://news.ycombinator.com/item?id=46404339(cve@mitre.org)

https://gpg.fail/formfeed(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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