{"id":"CVE-2026-57202","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-57202","generatedAt":"2026-10-28T01:52:10.021Z","title":"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…","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 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.","published":"2026-10-27T18:17:38.000Z","lastModified":"2026-10-27T18:17:38.000Z","status":"Received","sourceIdentifier":"security-advisories@github.com","cvss":{"version":"3.1","score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"},"cwe":["CWE-267","CWE-1220"],"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unscored. Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-27T18:17:38.000Z","detail":{"score":"8.1","severity":"HIGH","publishedAt":"2026-10-27T18:17:37.550Z"},"summary":"New CVE, high severity (CVSS 8.1)."}],"references":[{"url":"https://github.com/asterisk/asterisk/commit/8f8ccaf70a80e518147b0c35c0c252de4735446f","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/92a5dd1003b737ae1cd2df4e60b73beb8d5e42bb","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/ba04e7f1f98887c3c6e0dc4ddce663021f7e948a","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/bf9354267557ef6d6b75f5304faa243f595a5a66","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/caa4d50d9c3bf04fc979b5b2cdc5dc425772d845","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/d47b0b6e5a384746db194f751b53d559aba8dba9","source":"security-advisories@github.com"},{"url":"https://github.com/asterisk/asterisk/commit/d8614505b27688dec3a1d14554f52fda94712928","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-vrfp-mg3q-3959","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-2026-57202","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."}