CVE-2025-30258
MEDIUM
4.7
CVSS Score
Published: March 19, 2025 at 12:00 AM UTC
Updated: June 17, 2026 at 09:08 AM UTC
1 product affected across 1 vendorGnuPG
Using GnuPG by GnuPG?
Get instant alerts when new vulnerabilities affect GnuPG - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM4.7
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
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."
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (3)
Issue Tracking
Source: [email protected]
https://dev.gnupg.org/rG48978ccb4e20866472ef18436a32744350a65158Mailing ListRelease NotesVendor Advisory
Source: [email protected]
https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.htmlSSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusANALYZED
CWE
CWE-754
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card