Description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.2 through 3.3.0, there is a heap-based buffer overflow during a write operation when decompressing ZIPS-packed deep scan-line EXR files with a maliciously forged chunk header. This is fixed in version 3.3.3.
References (3)
Core 3
Core References
Exploit, Vendor Advisory x_refsource_confirm
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-h45x-qhg2-q375
Patch x_refsource_misc
https://github.com/AcademySoftwareFoundation/openexr/commit/916cc729e24aa16b86d82813f6e136340ab2876f
Release Notes x_refsource_misc
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.3
Scores
CVSS v3
7.8
EPSS
0.0004
EPSS Percentile
12.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-122
Status
published
Products (2)
openexr/openexr
3.3.0 - 3.3.3
pypi/OpenEXR
3.3.0 - 3.3.3PyPI
Published
Jul 31, 2025
Tracked Since
Feb 18, 2026