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Vulnerability details: VCID-ff42-1sjm-d7dm
Vulnerability ID VCID-ff42-1sjm-d7dm
Aliases CVE-2021-20303
Summary Integer Overflow or Wraparound 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.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-190 Integer Overflow or Wraparound
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
There are no known severity scores.
Reference id Reference type URL
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
CVE-2021-20303 https://nvd.nist.gov/vuln/detail/CVE-2021-20303
No exploits are available.
There are no known vectors.

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-02T04:41:43.857490+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/conan/openexr/CVE-2021-20303.yml 38.6.0