CVE-2026-57202

{
  "id": "CVE-2026-57202",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-27T18:17:37.550",
  "lastModified": "2026-10-28T14:22:07.513",
  "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 Asterisk REST Interface (ARI) attacker with read-only privileges may use `setChannelVar` to execute write dialplan functions, including `FILE()` writes, even when `live_dangerously` in `asterisk.conf` is set to no. The Asterisk HTTP web server must be enabled and reachable, and the attacker must already have valid `read-only ARI credentials`. HTTP is disabled by default and binds only to 127.0.0.1 by default even when enabled. 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:H/I:H/A:N",
          "baseScore": 8.1,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.2
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-267"
        },
        {
          "lang": "en",
          "value": "CWE-1220"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/asterisk/asterisk/commit/8f8ccaf70a80e518147b0c35c0c252de4735446f",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/92a5dd1003b737ae1cd2df4e60b73beb8d5e42bb",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/ba04e7f1f98887c3c6e0dc4ddce663021f7e948a",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/bf9354267557ef6d6b75f5304faa243f595a5a66",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/caa4d50d9c3bf04fc979b5b2cdc5dc425772d845",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/d47b0b6e5a384746db194f751b53d559aba8dba9",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/commit/d8614505b27688dec3a1d14554f52fda94712928",
      "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-vrfp-mg3q-3959",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1",
      "source": "[email protected]"
    }
  ]
}