{
  "modified": "2025-10-10T14:29:32Z",
  "published": "2025-03-19T20:15:20Z",
  "id": "CVE-2025-30258",
  "details": "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.\"",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H"
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html"
    },
    {
      "type": "ARTICLE",
      "url": "https://lists.gnupg.org/pipermail/gnupg-announce/2025q1/000491.html"
    },
    {
      "type": "EVIDENCE",
      "url": "https://dev.gnupg.org/T7527"
    },
    {
      "type": "REPORT",
      "url": "https://dev.gnupg.org/T7527"
    },
    {
      "type": "REPORT",
      "url": "https://dev.gnupg.org/rG48978ccb4e20866472ef18436a32744350a65158"
    }
  ]
}