{"id":"CVE-2021-43301","url":"https://www.cyber-defence.io/tools/cve/CVE-2021-43301","generatedAt":"2026-10-27T17:37:57.575Z","title":"Stack overflow in PJSUA API when calling pjsua_playlist_create.","description":"Stack overflow in PJSUA API when calling pjsua_playlist_create. An attacker-controlled 'file_names' argument may cause a buffer overflow since it is copied to a fixed-size stack buffer without any size validation.","published":"2022-02-16T21:15:08.000Z","lastModified":"2026-06-17T04:10:49.000Z","status":"Modified","sourceIdentifier":"reefs@jfrog.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-121","CWE-787"],"affected":["teluu/pjsip","debian/debian linux"],"epss":{"score":0.02356,"percentile":0.83629,"date":"2026-10-26","history":[]},"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 unlikely (2.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/pjsip/pjproject/security/advisories/GHSA-qcvw-h34v-c7r9","tags":["Patch","Third Party Advisory"],"source":"reefs@jfrog.com"},{"url":"https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html","tags":["Mailing List","Third Party Advisory"],"source":"reefs@jfrog.com"},{"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html","tags":["Mailing List","Third Party Advisory"],"source":"reefs@jfrog.com"},{"url":"https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html","source":"reefs@jfrog.com"},{"url":"https://www.debian.org/security/2022/dsa-5285","tags":["Third Party Advisory"],"source":"reefs@jfrog.com"},{"url":"https://github.com/pjsip/pjproject/security/advisories/GHSA-qcvw-h34v-c7r9","tags":["Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2022/03/msg00035.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2022/11/msg00021.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2023/08/msg00038.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2024/09/msg00030.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2022/dsa-5285","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-43301","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."}