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Vulnerability details: VCID-tuzb-thjx-sbdy
Vulnerability ID VCID-tuzb-thjx-sbdy
Aliases CVE-2021-20300
Summary Integer Overflow or Wraparound A flaw was found in OpenEXR's hufUncompress functionality in OpenEXR/IlmImf/ImfHuf.cpp. This flaw allows an attacker who can submit a crafted file that is processed by OpenEXR, to trigger an integer overflow. The highest threat from this vulnerability is to system availability.
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=25562
https://bugzilla.redhat.com/show_bug.cgi?id=1939153
https://github.com/AcademySoftwareFoundation/openexr/pull/836
CVE-2021-20300 https://nvd.nist.gov/vuln/detail/CVE-2021-20300
No exploits are available.
There are no known vectors.

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-02T04:41:43.823947+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/conan/openexr/CVE-2021-20300.yml 38.6.0