{"cve":"CVE-2021-32558","nvd":{"published":"2021-07-30T14:15:16.910","modified":"2026-06-17T03:53:10.447","status":"Modified","description":"An issue was discovered in Sangoma Asterisk 13.x before 13.38.3, 16.x before 16.19.1, 17.x before 17.9.4, and 18.x before 18.5.1, and Certified Asterisk before 16.8-cert10. If the IAX2 channel driver receives a packet that contains an unsupported media format, a crash can occur.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-74"],"references":["http://packetstormsecurity.com/files/163639/Asterisk-Project-Security-Advisory-AST-2021-008.html","http://seclists.org/fulldisclosure/2021/Jul/49","https://downloads.asterisk.org/pub/security/AST-2021-008.html","https://issues.asterisk.org/jira/browse/ASTERISK-29392","https://lists.debian.org/debian-lts-announce/2021/08/msg00005.html"],"products":["debian:debian_linux","digium:asterisk","digium:certified_asterisk"],"source":"nvd","synced_at":"2026-10-19T21:21:13.713336758+00:00"},"epss":{"cve":"CVE-2021-32558","score":0.09223,"percentile":0.95348,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}