Vulnerability · Published Jun 8, 2021 · Assigned by redhat

CVE-2021-26945

Medium 5.5

In plain English

A medium-severity uncontrolled resource consumption in OpenEXR. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.7%top 47.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20openexr3.1.1-r0ALPINE-CVE-2021-26945
Alpine:v3.21openexr3.1.1-r0ALPINE-CVE-2021-26945
Alpine:v3.22openexr3.1.1-r0ALPINE-CVE-2021-26945
Alpine:v3.23openexr3.1.1-r0ALPINE-CVE-2021-26945
Alpine:v3.24openexr3.1.1-r0ALPINE-CVE-2021-26945
Debian:12openexr3.1.5-2DEBIAN-CVE-2021-26945
Debian:13openexr3.1.5-2DEBIAN-CVE-2021-26945
Debian:14openexr3.1.5-2DEBIAN-CVE-2021-26945
Ubuntu:25.10openexrno fix listedUBUNTU-CVE-2021-26945
Ubuntu:26.10openexrno fix listedUBUNTU-CVE-2021-26945

Affected products (as reported)

VendorProductVersions
n/a OpenEXR OpenEXR 3.0.1

Weakness: CWE-400

References