{"id":"CVE-2026-57189","state":"PUBLISHED","title":"Asterisk: Possible RED T.140 Generation Accumulation OOB Write","description":"Asterisk is an open source private branch exchange and telephony toolkit. In affected deployments, an authenticated attacker may cause a `T.140 RED` out-of-bounds write during `generation accumulation` 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.","publishedAt":"2026-10-27T16:59:46.057Z","updatedAt":"2026-10-28T16:14:48.359Z","severity":{"score":2.3,"label":"Low","version":"4.0","vector":"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","source":"GitHub_M"},"assigner":"GitHub_M","products":["asterisk asterisk","asterisk certified-asterisk"],"affected":[{"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"}]}],"references":["https://github.com/asterisk/asterisk/security/advisories/GHSA-j2mm-57pq-jh94","https://github.com/asterisk/asterisk/commit/0601c33d4edf8c8f221de91cead59460fb1e7180","https://github.com/asterisk/asterisk/commit/111487298a954a029daae941eac423f0609b1261","https://github.com/asterisk/asterisk/commit/536218a86b797996e8e8844deacc8207de373701","https://github.com/asterisk/asterisk/commit/a89b61d7c756f816c7fa5327ead9e889f1531202","https://github.com/asterisk/asterisk/commit/eaa108c68a32c080d7a168ef1d8bf784d5d830f4","https://github.com/asterisk/asterisk/commit/eef894282be203cb9e6d8e9692e9c360a0b569b4","https://github.com/asterisk/asterisk/commit/fde69a1f3ff17f507a1578ae27b528f43ceb5efd","https://github.com/asterisk/asterisk/releases/tag/20.20.1","https://github.com/asterisk/asterisk/releases/tag/21.12.3","https://github.com/asterisk/asterisk/releases/tag/22.10.1","https://github.com/asterisk/asterisk/releases/tag/23.4.1","https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11","https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","https://github.com/asterisk/asterisk/tree/24.0.0-pre1"],"weaknesses":["CWE-787"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/57xxx/CVE-2026-57189.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-57189","state":"PUBLISHED","datePublished":"2026-10-27T16:59:46.057Z","dateUpdated":"2026-10-28T16:14:48.359Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-24T02:00:46.799Z"},"containers":{"cna":{"title":"Asterisk: Possible RED T.140 Generation Accumulation OOB Write","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` out-of-bounds write during `generation accumulation` 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."}],"affected":[{"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"}]}],"references":[{"url":"https://github.com/asterisk/asterisk/security/advisories/GHSA-j2mm-57pq-jh94","name":"https://github.com/asterisk/asterisk/security/advisories/GHSA-j2mm-57pq-jh94","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/asterisk/asterisk/commit/0601c33d4edf8c8f221de91cead59460fb1e7180","name":"https://github.com/asterisk/asterisk/commit/0601c33d4edf8c8f221de91cead59460fb1e7180","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/commit/111487298a954a029daae941eac423f0609b1261","name":"https://github.com/asterisk/asterisk/commit/111487298a954a029daae941eac423f0609b1261","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/commit/536218a86b797996e8e8844deacc8207de373701","name":"https://github.com/asterisk/asterisk/commit/536218a86b797996e8e8844deacc8207de373701","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/commit/a89b61d7c756f816c7fa5327ead9e889f1531202","name":"https://github.com/asterisk/asterisk/commit/a89b61d7c756f816c7fa5327ead9e889f1531202","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/commit/eaa108c68a32c080d7a168ef1d8bf784d5d830f4","name":"https://github.com/asterisk/asterisk/commit/eaa108c68a32c080d7a168ef1d8bf784d5d830f4","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/commit/eef894282be203cb9e6d8e9692e9c360a0b569b4","name":"https://github.com/asterisk/asterisk/commit/eef894282be203cb9e6d8e9692e9c360a0b569b4","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/commit/fde69a1f3ff17f507a1578ae27b528f43ceb5efd","name":"https://github.com/asterisk/asterisk/commit/fde69a1f3ff17f507a1578ae27b528f43ceb5efd","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/releases/tag/20.20.1","name":"https://github.com/asterisk/asterisk/releases/tag/20.20.1","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/releases/tag/21.12.3","name":"https://github.com/asterisk/asterisk/releases/tag/21.12.3","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/releases/tag/22.10.1","name":"https://github.com/asterisk/asterisk/releases/tag/22.10.1","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/releases/tag/23.4.1","name":"https://github.com/asterisk/asterisk/releases/tag/23.4.1","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-20.7-cert11","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","name":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","tags":["x_refsource_MISC"]},{"url":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1","name":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":2.3,"baseSeverity":"LOW","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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-787","lang":"en","description":"CWE-787: Out-of-bounds Write","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-27T16:59:46.057Z"},"source":{"advisory":"GHSA-j2mm-57pq-jh94","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-28T14:34:23.402181Z","id":"CVE-2026-57189","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-28T16:14:48.359Z"}}]}}}