{
  "cveId": "CVE-2025-57767",
  "url": "https://patchblox.com/security/cve/CVE-2025-57767",
  "summary": "CVE-2025-57767 is fixed in asterisk on 1 platform by DEBIAN-CVE-2025-57767 (version 1:22.5.2~dfsg\u002B~cs6.15.60671435-1), released August 28, 2025. It is not reported as exploited. Patch Radar priority: High.",
  "title": "asterisk: Asterisk is an open source private branch exchange and telephony toolkit",
  "description": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to versions 20.15.2, 21.10.2, and 22.5.2, if a SIP request is received with an Authorization header that contains a realm that wasn\u0027t in a previous 401 response\u0027s WWW-Authenticate header, or an Authorization header with an incorrect realm was received without a previous 401 response being sent, the get_authorization_header() function in res_pjsip_authenticator_digest will return a NULL. This wasn\u0027t being checked before attempting to get the digest algorithm from the header which causes a SEGV. This issue has been patched in versions 20.15.2, 21.10.2, and 22.5.2. There are no workarounds.",
  "published": "2025-08-28T16:15:35Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00425,
  "epssPercentile": 0.36977,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "asterisk",
      "release": "Debian 14",
      "fixedVersion": "1:22.5.2~dfsg\u002B~cs6.15.60671435-1",
      "fix": "DEBIAN-CVE-2025-57767",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-57767",
      "released": "2025-08-28T16:15:35Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}