Heap-based buffer overflow in OpenEXR - CVE-2025-48071
Published: April 8, 2026
Vulnerability identifier: #VU125323
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2025-48071
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code.
The vulnerability exists due to heap-based buffer overflow in the undo_zip_impl function and deep scanline ZIP reconstruction logic when parsing a crafted ZIPS-packed deep scan-line EXR file with a forged chunk header. A remote attacker can supply a specially crafted EXR file to execute arbitrary code.
User interaction is required to open or process a crafted EXR file.
Affected software
OpenEXR
How to mitigate CVE-2025-48071
Install security update from vendor's website.
OpenEXR - update to 3.3.3