CVE-2021-26945

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-08 · updated 2026-06-17
Weakness: CWE-400

Description

An integer overflow leading to a heap-buffer overflow was found in OpenEXR in versions before 3.0.1. An attacker could use this flaw to crash an application compiled with OpenEXR.

Affected products

AcademySoftwareFoundation openexr: before 3.0.1 — fixed in 3.0.1

How to fix

Upgrade to a fixed version: AcademySoftwareFoundation openexr 3.0.1. Check the vendor advisory for mitigations.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1947591
https://bugzilla.redhat.com/show_bug.cgi?id=1947591

Get alerted when CVE-2021-26945 or the next vulnerability affects your stack