Integer overflow in OpenEXR - #VU141324
Published: August 8, 2026
Vulnerability identifier: #VU141324
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-190
Exploitation vector: Remote 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 integer overflow or wraparound in the planar HTJ2K decoder in src/lib/OpenEXRCore/internal_ht.cpp when parsing a crafted EXR file with a negative data-window Y origin and vertical channel subsampling. A remote attacker can supply a specially crafted EXR file to cause a denial of service.
User interaction is required to open or process the crafted file.
Affected software
OpenEXR
Remediation
Install security update from vendor's website.
OpenEXR - update to 3.4.14