{"cve":"CVE-2020-21596","nvd":{"published":"2021-09-16T22:15:07.743","modified":"2026-06-17T03:03:47.977","status":"Modified","description":"libde265 v1.0.4 contains a global buffer overflow in the decode_CABAC_bit function, which can be exploited via a crafted a file.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-120"],"references":["https://github.com/strukturag/libde265/issues/236","https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html","https://www.debian.org/security/2023/dsa-5346","https://github.com/strukturag/libde265/issues/236","https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html"],"products":["debian:debian_linux","struktur:libde265"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2020-21596","score":0.01492,"percentile":0.74134,"date":"2026-11-01"},"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."]}