CVE-2025-30258 – GnuPG Certificate Verification Denial of Service

The following table lists the changes that have been made to the
CVE-2025-30258 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Mar. 19, 2025

    Action Type Old Value New Value
    Added 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.”
    Added CVSS V3.1 AV:L/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:L
    Added CWE CWE-754
    Added Reference https://dev.gnupg.org/rG48978ccb4e20866472ef18436a32744350a65158
    Added Reference https://dev.gnupg.org/T7527
    Added Reference https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html
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