{"api_version":"1","generated_at":"2026-11-06T04:10:17+00:00","cve":"CVE-2026-57195","urls":{"html":"https://cve.report/CVE-2026-57195","api":"https://cve.report/api/cve/CVE-2026-57195.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-57195","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-57195"},"summary":{"title":"Asterisk: NULL Pointer Dereference in HTTP AMI Digest Authentication","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, a NULL pointer dereference in the `Asterisk Manager Interface (AMI)` may allow an unauthenticated attacker to crash Asterisk when `Digest Authentication` is used via `HTTP`. The Asterisk `HTTP` web server, AMI, and AMI access via `HTTP` must all be enabled; each is disabled by default. The attacker must be able to connect to the `HTTP` server, which 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.","state":"PUBLISHED","assigner":"GitHub_M","published_at":"2026-10-27 21:18:06","updated_at":"2026-11-02 20:17:45"},"problem_types":["CWE-476","CWE-476 CWE-476: NULL Pointer Dereference"],"metrics":[{"version":"3.1","source":"security-advisories@github.com","type":"Secondary","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.5","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://github.com/asterisk/asterisk/releases/tag/22.10.1","name":"https://github.com/asterisk/asterisk/releases/tag/22.10.1","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/commit/5d5d8d8ef7f16774820b1889ae73d8d2ab14af45","name":"https://github.com/asterisk/asterisk/commit/5d5d8d8ef7f16774820b1889ae73d8d2ab14af45","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/commit/fff89162cdd702e8a143701f138edd8dceab154f","name":"https://github.com/asterisk/asterisk/commit/fff89162cdd702e8a143701f138edd8dceab154f","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/releases/tag/20.20.1","name":"https://github.com/asterisk/asterisk/releases/tag/20.20.1","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/commit/362ef847e7e057b7626e476ddcfe7328ea314db4","name":"https://github.com/asterisk/asterisk/commit/362ef847e7e057b7626e476ddcfe7328ea314db4","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/commit/a1fcfdf9b91ed58cc8fb9da8d135da60bae7345d","name":"https://github.com/asterisk/asterisk/commit/a1fcfdf9b91ed58cc8fb9da8d135da60bae7345d","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11","name":"https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert11","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","name":"https://github.com/asterisk/asterisk/releases/tag/certified-22.8-cert3","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/security/advisories/GHSA-3rhj-hhw7-m6fw","name":"https://github.com/asterisk/asterisk/security/advisories/GHSA-3rhj-hhw7-m6fw","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/commit/10c5b2efcacab03bf04a229f81cc24e76fe42c41","name":"https://github.com/asterisk/asterisk/commit/10c5b2efcacab03bf04a229f81cc24e76fe42c41","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/releases/tag/23.4.1","name":"https://github.com/asterisk/asterisk/releases/tag/23.4.1","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/releases/tag/21.12.3","name":"https://github.com/asterisk/asterisk/releases/tag/21.12.3","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/commit/abba42c58fee2226a709583afdbeec75cf1dde8b","name":"https://github.com/asterisk/asterisk/commit/abba42c58fee2226a709583afdbeec75cf1dde8b","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1","name":"https://github.com/asterisk/asterisk/tree/24.0.0-pre1","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://github.com/asterisk/asterisk/commit/87a1f43e4c465b885163665aa89172ed0f392663","name":"https://github.com/asterisk/asterisk/commit/87a1f43e4c465b885163665aa89172ed0f392663","refsource":"security-advisories@github.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-57195","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-57195","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"asterisk","product":"asterisk","version":"affected < 20.20.1","platforms":[]},{"source":"CNA","vendor":"asterisk","product":"asterisk","version":"affected >= 21.0.0-pre1, < 21.12.3","platforms":[]},{"source":"CNA","vendor":"asterisk","product":"asterisk","version":"affected >= 22.0.0-pre1, < 22.10.1","platforms":[]},{"source":"CNA","vendor":"asterisk","product":"asterisk","version":"affected >= 23.0.0-pre1, < 23.4.1","platforms":[]},{"source":"CNA","vendor":"asterisk","product":"certified-asterisk","version":"affected < 20.7-cert11","platforms":[]},{"source":"CNA","vendor":"asterisk","product":"certified-asterisk","version":"affected >= 22.8-cert1-pre1, < 22.8-cert3","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"57195","cve":"CVE-2026-57195","epss":"0.005730000","percentile":"0.473610000","score_date":"2026-11-02","updated_at":"2026-11-03 00:03:06"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-57195","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-11-02T19:44:16.797034Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-11-02T19:44:27.494Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"product":"asterisk","vendor":"asterisk","versions":[{"status":"affected","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"}]},{"product":"certified-asterisk","vendor":"asterisk","versions":[{"status":"affected","version":"< 20.7-cert11"},{"status":"affected","version":">= 22.8-cert1-pre1, < 22.8-cert3"}]}],"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, a NULL pointer dereference in the `Asterisk Manager Interface (AMI)` may allow an unauthenticated attacker to crash Asterisk when `Digest Authentication` is used via `HTTP`. The Asterisk `HTTP` web server, AMI, and AMI access via `HTTP` must all be enabled; each is disabled by default. The attacker must be able to connect to the `HTTP` server, which 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."}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-10-27T21:04:25.747Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M"},"references":[{"name":"https://github.com/asterisk/asterisk/security/advisories/GHSA-3rhj-hhw7-m6fw","tags":["x_refsource_CONFIRM"],"url":"https://github.com/asterisk/asterisk/security/advisories/GHSA-3rhj-hhw7-m6fw"},{"name":"https://github.com/asterisk/asterisk/commit/10c5b2efcacab03bf04a229f81cc24e76fe42c41","tags":["x_refsource_MISC"],"url":"https://github.com/asterisk/asterisk/commit/10c5b2efcacab03bf04a229f81cc24e76fe42c41"},{"name":"https://github.com/asterisk/asterisk/commit/362ef847e7e057b7626e476ddcfe7328ea314db4","tags":["x_refsource_MISC"],"url":"https://github.com/asterisk/asterisk/commit/362ef847e7e057b7626e476ddcfe7328ea314db4"},{"name":"https://github.com/asterisk/asterisk/commit/5d5d8d8ef7f16774820b1889ae73d8d2ab14af45","tags":["x_refsource_MISC"],"url":"https://github.com/asterisk/asterisk/commit/5d5d8d8ef7f16774820b1889ae73d8d2ab14af45"},{"name":"https://github.com/asterisk/asterisk/commit/87a1f43e4c465b885163665aa89172ed0f392663","tags":["x_refsource_MISC"],"url":"https://github.com/asterisk/asterisk/commit/87a1f43e4c465b885163665aa89172ed0f392663"},{"name":"https://github.com/asterisk/asterisk/commit/a1fcfdf9b91ed58cc8fb9da8d135da60bae7345d","tags":["x_refsource_MISC"],"url":"https://github.com/asterisk/asterisk/commit/a1fcfdf9b91ed58cc8fb9da8d135da60bae7345d"},{"name":"https://github.com/asterisk/asterisk/commit/abba42c58fee2226a709583afdbeec75cf1dde8b","tags":["x_refsource_MISC"],"url":"https://github.com/asterisk/asterisk/commit/abba42c58fee2226a709583afdbeec75cf1dde8b"},{"name":"https://github.com/asterisk/asterisk/commit/fff89162cdd702e8a143701f138edd8dceab154f","tags":["x_refsource_MISC"],"url":"https://github.com/asterisk/asterisk/commit/fff89162cdd702e8a143701f138edd8dceab154f"},{"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-3rhj-hhw7-m6fw","discovery":"UNKNOWN"},"title":"Asterisk: NULL Pointer Dereference in HTTP AMI Digest Authentication"}},"cveMetadata":{"assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","assignerShortName":"GitHub_M","cveId":"CVE-2026-57195","datePublished":"2026-10-27T21:04:25.747Z","dateReserved":"2026-06-24T02:00:46.800Z","dateUpdated":"2026-11-02T19:44:27.494Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-10-27 21:18:06","lastModifiedDate":"2026-11-02 20:17:45","problem_types":["CWE-476","CWE-476 CWE-476: NULL Pointer Dereference"],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-11-02T19:44:16.797034Z","id":"CVE-2026-57195","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"57195","Ordinal":"1","Title":"Asterisk: NULL Pointer Dereference in HTTP AMI Digest Authentica","CVE":"CVE-2026-57195","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"57195","Ordinal":"1","NoteData":"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, a NULL pointer dereference in the `Asterisk Manager Interface (AMI)` may allow an unauthenticated attacker to crash Asterisk when `Digest Authentication` is used via `HTTP`. The Asterisk `HTTP` web server, AMI, and AMI access via `HTTP` must all be enabled; each is disabled by default. The attacker must be able to connect to the `HTTP` server, which 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.","Type":"Description","Title":"Asterisk: NULL Pointer Dereference in HTTP AMI Digest Authentica"}]}}}