CVE-2023-50245: OpenEXR-viewer memory overflow vulnerability

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-12-11 · updated 2026-06-17
Weakness: CWE-120

Description

OpenEXR-viewer is a viewer for OpenEXR files with detailed metadata probing. Versions prior to 0.6.1 have a memory overflow vulnerability. This issue is fixed in version 0.6.1.

Affected products

afichet openexr-viewer: before 0.6.1 — fixed in 0.6.1

How to fix

Upgrade to a fixed version: afichet openexr-viewer 0.6.1. Check the vendor advisory for mitigations.

References

https://github.com/afichet/openexr-viewer/commit/d0a7e85dfeb519951fb8a8d70f73f30d41cdd3d9
https://github.com/afichet/openexr-viewer/security/advisories/GHSA-99jg-r3f4-rpxj
https://github.com/afichet/openexr-viewer/commit/d0a7e85dfeb519951fb8a8d70f73f30d41cdd3d9
https://github.com/afichet/openexr-viewer/security/advisories/GHSA-99jg-r3f4-rpxj

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