CVE-2026-57198 (GCVE-0-2026-57198)
Vulnerability from cvelistv5
Published
2026-10-27 16:47
Modified
2026-10-27 16:47
Severity ?
2.3 (Low) - CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
CWE
  • CWE-122 - Heap-based Buffer Overflow
Summary
Asterisk is an open source private branch exchange and telephony toolkit. In affected deployments, an authenticated attacker may cause a `T.140 RED` heap buffer overflow using carefully crafted packets, potentially allowing remote code execution or causing Asterisk to crash. The `chan_sip` channel driver must be installed and configured, and its `textsupport` option must be enabled; `textsupport` defaults to no. `The chan_sip driver was deprecated in Asterisk 20 and completely removed in all later versions.` Repository comparisons verify patch containment in Asterisk 20.20.1, 21.12.3, 22.10.1 and 23.4.1, and Certified Asterisk 20.7-cert11 and 22.8-cert3. The affected release-track scope remains unresolved: structured metadata includes later release tracks even though the advisory says the required `chan_sip` driver was removed there.
References
Impacted products
Vendor Product Version
asterisk asterisk Version: < 20.20.1
Version: >= 21.0.0-pre1, < 21.12.3
Version: >= 22.0.0-pre1, < 22.10.1
Version: >= 23.0.0-pre1, < 23.4.1
 Create a notification for this product.
   asterisk certified-asterisk Version: < 20.7-cert11
Version: >= 22.8-cert1-pre1, < 22.8-cert3
 Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "asterisk",
          "vendor": "asterisk",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 20.20.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 21.0.0-pre1, \u003c 21.12.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 22.0.0-pre1, \u003c 22.10.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 23.0.0-pre1, \u003c 23.4.1"
            }
          ]
        },
        {
          "product": "certified-asterisk",
          "vendor": "asterisk",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 20.7-cert11"
            },
            {
              "status": "affected",
              "version": "\u003e= 22.8-cert1-pre1, \u003c 22.8-cert3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Asterisk is an open source private branch exchange and telephony toolkit. In affected deployments, an authenticated attacker may cause a `T.140 RED` heap buffer overflow using carefully crafted packets, potentially allowing remote code execution or causing Asterisk to crash. The `chan_sip` channel driver must be installed and configured, and its `textsupport` option must be enabled; `textsupport` defaults to no. `The chan_sip driver was deprecated in Asterisk 20 and completely removed in all later versions.` Repository comparisons verify patch containment in Asterisk 20.20.1, 21.12.3, 22.10.1 and 23.4.1, and Certified Asterisk 20.7-cert11 and 22.8-cert3. The affected release-track scope remains unresolved: structured metadata includes later release tracks even though the advisory says the required `chan_sip` driver was removed there."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 2.3,
            "baseSeverity": "LOW",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-122",
              "description": "CWE-122: Heap-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-27T16:47:20.717Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/asterisk/asterisk/security/advisories/GHSA-vfhr-r9x9-c687",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/asterisk/asterisk/security/advisories/GHSA-vfhr-r9x9-c687"
        },
        {
          "name": "https://github.com/asterisk/asterisk/commit/0601c33d4edf8c8f221de91cead59460fb1e7180",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/commit/0601c33d4edf8c8f221de91cead59460fb1e7180"
        },
        {
          "name": "https://github.com/asterisk/asterisk/commit/111487298a954a029daae941eac423f0609b1261",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/commit/111487298a954a029daae941eac423f0609b1261"
        },
        {
          "name": "https://github.com/asterisk/asterisk/commit/536218a86b797996e8e8844deacc8207de373701",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/commit/536218a86b797996e8e8844deacc8207de373701"
        },
        {
          "name": "https://github.com/asterisk/asterisk/commit/a89b61d7c756f816c7fa5327ead9e889f1531202",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/commit/a89b61d7c756f816c7fa5327ead9e889f1531202"
        },
        {
          "name": "https://github.com/asterisk/asterisk/commit/eaa108c68a32c080d7a168ef1d8bf784d5d830f4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/commit/eaa108c68a32c080d7a168ef1d8bf784d5d830f4"
        },
        {
          "name": "https://github.com/asterisk/asterisk/commit/eef894282be203cb9e6d8e9692e9c360a0b569b4",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/commit/eef894282be203cb9e6d8e9692e9c360a0b569b4"
        },
        {
          "name": "https://github.com/asterisk/asterisk/commit/fde69a1f3ff17f507a1578ae27b528f43ceb5efd",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/commit/fde69a1f3ff17f507a1578ae27b528f43ceb5efd"
        },
        {
          "name": "https://github.com/asterisk/asterisk/releases/tag/20.20.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/releases/tag/20.20.1"
        },
        {
          "name": "https://github.com/asterisk/asterisk/releases/tag/21.12.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/releases/tag/21.12.3"
        },
        {
          "name": "https://github.com/asterisk/asterisk/releases/tag/22.10.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/releases/tag/22.10.1"
        },
        {
          "name": "https://github.com/asterisk/asterisk/releases/tag/23.4.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/releases/tag/23.4.1"
        },
        {
          "name": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11"
        },
        {
          "name": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3"
        },
        {
          "name": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/asterisk/asterisk/tree/24.0.0-pre1"
        }
      ],
      "source": {
        "advisory": "GHSA-vfhr-r9x9-c687",
        "discovery": "UNKNOWN"
      },
      "title": "Asterisk: Possible RED T.140 Heap Buffer Overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-57198",
    "datePublished": "2026-10-27T16:47:20.717Z",
    "dateReserved": "2026-06-24T02:00:46.800Z",
    "dateUpdated": "2026-10-27T16:47:20.717Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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