{"id":"CVE-2026-57189","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-57189","generatedAt":"2026-10-28T03:30:43.807Z","title":"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.","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.","published":"2026-10-27T17:17:01.000Z","lastModified":"2026-10-27T17:17:01.000Z","status":"Received","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"4.0","score":2.3,"severity":"LOW","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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-787"],"affected":[],"epss":null,"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and no EPSS score yet. Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-27T17:17:01.000Z","detail":{"score":"2.3","severity":"LOW","publishedAt":"2026-10-27T17:17:01.450Z"},"summary":"New CVE, low severity (CVSS 2.3)."}],"references":[{"url":"https://github.com/asterisk/asterisk/commit/0601c33d4edf8c8f221de91cead59460fb1e7180","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/111487298a954a029daae941eac423f0609b1261","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/536218a86b797996e8e8844deacc8207de373701","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/a89b61d7c756f816c7fa5327ead9e889f1531202","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/eaa108c68a32c080d7a168ef1d8bf784d5d830f4","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/eef894282be203cb9e6d8e9692e9c360a0b569b4","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/fde69a1f3ff17f507a1578ae27b528f43ceb5efd","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/20.20.1","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/21.12.3","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/22.10.1","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/23.4.1","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/security/advisories/GHSA-j2mm-57pq-jh94","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1","source":"security-advisories@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-57189","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}