Cyber Resilience

CVE-2021-3476

Medium

Published: 30 March 2021

Published
30 March 2021
Modified
21 November 2024
KEV Added
—
Patch
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CVSS Score v3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0101 77.5th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-3476 is a medium-severity Integer Overflow or Wraparound (CWE-190) vulnerability in Openexr Openexr. Its CVSS base score is 5.3 (Medium).

Operationally, ranked in the top 22.5% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

A flaw was found in OpenEXR's B44 uncompression functionality in versions before 3.0.0-beta. An attacker who is able to submit a crafted file to OpenEXR could trigger shift overflows, potentially affecting application availability.

CWE(s)
CWE-190

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

openexr
openexr
≤ 2.4.3 · 2.5.0 — 2.5.4
debian
debian linux
10.0, 9.0

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References