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."
{
"sources": [
{
"modified": "2025-10-16T16:53:07.557Z",
"imported": "2025-10-17T20:30:39.149Z",
"published": "2025-03-19T20:15:20.140Z",
"url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-30258",
"html_url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30258",
"id": "CVE-2025-30258"
}
],
"license": "CC-BY-4.0"
}