{"cve":"CVE-2021-20303","nvd":{"published":"2022-03-04T18:15:07.993","modified":"2026-06-17T03:33:38.227","status":"Modified","description":"A flaw found in function dataWindowForTile() of IlmImf/ImfTiledMisc.cpp. An attacker who is able to submit a crafted file to be processed by OpenEXR could trigger an integer overflow, leading to an out-of-bounds write on the heap. The greatest impact of this flaw is to application availability, with some potential impact to data integrity as well.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H","score":6.1},"cwes":["CWE-190"],"references":["https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25505","https://bugzilla.redhat.com/show_bug.cgi?id=1939151","https://github.com/AcademySoftwareFoundation/openexr/pull/831","https://lists.debian.org/debian-lts-announce/2022/12/msg00022.html","https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=25505"],"products":["debian:debian_linux","openexr:openexr"],"source":"nvd","synced_at":"2026-10-19T21:28:04.509275555+00:00"},"epss":{"cve":"CVE-2021-20303","score":0.00822,"percentile":0.57326,"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."]}