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CVE-2026-57185

Full vulnerability record from the local CVENow database.

Description

Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an authenticated attacker may crash Asterisk through a buffer over-read in the `PJSIP MWI body parser` by sending a carefully crafted `SIP NOTIFY` request. The attacker must pass SIP authentication using either a username/password or `source IP address matching`. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3.

Severity
MEDIUM
CVSS score
6.5 (v3.1)
Vulnerability status
Awaiting Analysis
Source identifier
Published
2026-10-27 17:17:01.267000
Last modified
2026-10-28 14:18:37.620000
View original CVE JSON
{
  "id": "CVE-2026-57185",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-27T17:17:01.267",
  "lastModified": "2026-10-28T14:18:37.620",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3, an authenticated attacker may crash Asterisk through a buffer over-read in the `PJSIP MWI body parser` by sending a carefully crafted `SIP NOTIFY` request. The attacker must pass SIP authentication using either a username/password or `source IP address matching`. This issue is fixed in Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 20.7-cert11, 22.8-cert3."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "asterisk",
          "product": "asterisk",
          "versions": [
            {
              "version": "< 20.20.1",
              "status": "affected"
            },
            {
              "version": ">= 21.0.0-pre1, < 21.12.3",
              "status": "affected"
            },
            {
              "version": ">= 22.0.0-pre1, < 22.10.1",
              "status": "affected"
            },
            {
              "version": ">= 23.0.0-pre1, < 23.4.1",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "asterisk",
          "product": "certified-asterisk",
          "versions": [
            {
              "version": "< 20.7-cert11",
              "status": "affected"
            },
            {
              "version": ">= 22.8-cert1-pre1, < 22.8-cert3",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-126"
        },
        {
          "lang": "en",
          "value": "CWE-170"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/asterisk/asterisk/commit/07aec894a1fdfa7fa989d3ab40fdf0dcda8005bb",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/1039bed76fa3248f58b6880e4b3f1421ef98b01f",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/1b2d99d8eb9206d37fd47115996f67fd28bd056f",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/3100a0d331affbf0995b8c57aaddb31cf3971f6e",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/57ce484a45b098de417f19265c95c64497782e36",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/919f2ffda03329c9014bedcb3c7789d38660c9ed",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/dafff9fb60281817225f1ce6371a5aa2fbb967a4",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/releases/tag/20.20.1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/releases/tag/21.12.3",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/releases/tag/22.10.1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/releases/tag/23.4.1",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-8jw3-ccr9-xrmf",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1",
      "source": "[email protected]"
    }
  ]
}