Out-of-bounds write in OpenEXR - CVE-2026-68516
Published: August 8, 2026
Vulnerability identifier: #VU141347
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: CVE-2026-68516
CWE-ID: CWE-787
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 out-of-bounds write in the vendored OpenJPH HTJ2K decoder when parsing a crafted HTJ2K-compressed EXR file. A remote attacker can trick the victim into opening a crafted file to cause a denial of service.
User interaction is required to open or decode a crafted EXR file.
Affected software
OpenEXR
How to mitigate CVE-2026-68516
Install security update from vendor's website.
OpenEXR - update to 3.4.14