CVE-2025-30258

MEDIUM EPSS 7.6%
Published Mar 19, 20251y ago · Modified Jun 17, 20262w ago
4.7 CVSS 3.1
Medium
Find Similar
Published Mar 19, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

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."

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:N/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
7.6% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-754

Affected Products 2

VendorProductVersionRange
gnupggnupg* <2.4.8
gnupggnupg*≥2.5.0  –  <2.5.5

References 3

  • dev.gnupg.org https://dev.gnupg.org/T7527
    ExploitIssue Tracking
  • dev.gnupg.org https://dev.gnupg.org/rG48978ccb4e20866472ef18436a32744350a65158
    Issue Tracking
  • lists.gnupg.org https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html
    Mailing ListRelease NotesVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.