CVE-2025-30258

2.7 LOW
Published: March 19, 2025 Modified: October 16, 2025

Description

In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS."

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://dev.gnupg.org/T7527
Source: cve@mitre.org
Exploit Issue Tracking
https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html
Source: cve@mitre.org
Mailing List Release Notes Vendor Advisory

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
2.7 / 10.0
EPSS (Exploit Probability)
0.0%
6th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

gnupg