Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnupg | Gnupg | <= 2.4.8 |
Related Weaknesses (CWE)
References
- https://gpg.fail/formfeedProduct
- https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-iProduct
- https://news.ycombinator.com/item?id=46404339Issue Tracking
- https://gpg.fail/formfeedProduct
FAQ
What is CVE-2025-68972?
CVE-2025-68972 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 signat...
How severe is CVE-2025-68972?
CVE-2025-68972 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-68972?
Check the references section above for vendor advisories and patch information. Affected products include: Gnupg Gnupg.