LOW 2.7 Microsoft

CVE-2025-30258

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."

Microsoft Security Update 2025-Mar: 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."

Affected Products

References

Published: 2025-03-11 · Source: Microsoft · Feed updated: 2026-09-25
This low severity vulnerability with a CVSS score of 2.7 was published on 2025-03-11 via Microsoft. Affected: cbl2 gnupg2 2.4.0-3 on CBL-Mariner 2.0, cbl2 gnupg2 2.4.0-2 on CBL Mariner 2.0, azl3 gnupg2 2.4.7-1 on Azure Linux 3.0 and 3 more.
vulnfeed aggregates 10851 vulnerabilities from NVD, CISA KEV, Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.