NULL pointer dereference in OpenEXR - #VU141365
Published: August 8, 2026
Vulnerability identifier: #VU141365
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to a null pointer dereference in exr_attr_set_preview() and exr_attr_preview_create() when processing a preview attribute with nonzero dimensions and a null rgba pointer. A remote attacker can supply crafted preview attribute data to cause a denial of service.
The issue is reachable through the public OpenEXRCore C API and has not been confirmed to be directly triggerable through the standard EXR file loading path.
Affected software
OpenEXR
Remediation
Install security update from vendor's website.
OpenEXR - addressed in versions 3.2.11, 3.3.13, 3.4.14