Heap-based buffer overflow in OpenEXR - CVE-2026-68515
Published: August 8, 2026 / Updated: August 8, 2026
Vulnerability identifier: #VU141348
CSH Severity: High
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-68515
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service or corrupt memory.
The vulnerability exists due to a heap-based buffer overflow in the exrmultiview utility when processing two attacker-supplied scanline EXR files whose combined data window is not aligned to a view\'s channel subsampling. A remote attacker can supply crafted EXR inputs to trigger a heap out-of-bounds write and cause a denial of service or corrupt memory.
User interaction is required to open or process the crafted EXR files.
Affected software
OpenEXR
How to mitigate CVE-2026-68515
Install security update from vendor's website.
OpenEXR - addressed in versions 3.2.11, 3.3.13, 3.4.14