{"cve":"CVE-2021-30473","nvd":{"published":"2021-05-06T15:15:07.943","modified":"2026-06-17T03:50:18.400","status":"Modified","description":"aom_image.c in libaom in AOMedia before 2021-04-07 frees memory that is not located on the heap.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-763"],"references":["https://aomedia.googlesource.com/aom/+/4efe20e99dcd9b6f8eadc8de8acc825be7416578","https://bugs.chromium.org/p/aomedia/issues/detail?id=2998","https://lists.debian.org/debian-lts-announce/2023/09/msg00003.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZXCI33HXH6YSOGC2LPE2REQLMIDH6US4/","https://security.gentoo.org/glsa/202401-32"],"products":["aomedia:aomedia","fedoraproject:fedora"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2021-30473","score":0.0205,"percentile":0.81241,"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."]}