{"cve":"CVE-2020-22027","nvd":{"published":"2021-05-27T19:15:08.150","modified":"2026-06-17T03:04:04.147","status":"Modified","description":"A heap-based Buffer Overflow vulnerability exits in FFmpeg 4.2 in deflate16 at libavfilter/vf_neighbor.c, which might lead to memory corruption and other potential consequences.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-787"],"references":["https://trac.ffmpeg.org/attachment/ticket/8242/gdb-vf_neighbor_191","https://trac.ffmpeg.org/ticket/8242","https://www.debian.org/security/2021/dsa-4990","https://trac.ffmpeg.org/attachment/ticket/8242/gdb-vf_neighbor_191","https://trac.ffmpeg.org/ticket/8242"],"products":["debian:debian_linux","ffmpeg:ffmpeg"],"source":"nvd","synced_at":"2026-10-19T21:18:09.669877188+00:00"},"epss":{"cve":"CVE-2020-22027","score":0.0153,"percentile":0.7475,"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."]}