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CVE-2025-68972

Published: Dec 27, 2025Updated: Jan 9, 2026 Sources: CVE List NVD BDUCWE-347
NVD MITRE
5.9CVSSMEDIUM
EPSS Score
0.1%
Top 98.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:LAC:HPR:NUI:NS:CC:NI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-347

Affected Products

gnupggnupg
LibraryLibrary
Security Products / pki-crypto
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
Platform V SberLinux OS ServerАО «СберТех»
On-premOS
Operating Systems / linux-distro
GnuPGСообщество свободного программного обеспечения
On-prem
Operating Systems / linux-distro
gnupgoss-projectSecurity Productsaka libgcrypt, libksba
red hat inc.commercialUSOperating Systemsaka red hat
ооо «ред софт»commercialRUOperating Systemsaka red soft
ао «сбертех»commercialRUOperating Systemsaka ao sbertech, сбертех
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://gpg.fail/formfeed
gpg.fail
https://media.ccc.de/v/39c3-to-sign-or-not-to-sign-practical-vulnerabilities-i
media.ccc.de
https://news.ycombinator.com/item?id=46404339
news.ycombinator.com
and 4 more references View all →

Timeline

Published
Dec 27, 2025
Last Updated
Jan 9, 2026

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