High severity · published Nov 10, 2025
CVE-2025-64182
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry
7.8
CVSS
0.3%
EPSS
No
On KEV
Description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.2.0 through 3.2.4, 3.3.0 through 3.3.5, and 3.4.0 through 3.4.2, a memory safety bug in the legacy OpenEXR Python adapter (the deprecated OpenEXR.InputFile wrapper) allow crashes and likely code execution when opening attacker-controlled EXR files or when passing crafted Python objects. Integer overflow and unchecked allocation in InputFile.channel() and InputFile.channels() can lead to heap overflow (32 bit) or a NULL deref (64 bit). Versions 3.2.5, 3.3.6, and 3.4.3 contain a patch for the issue.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 18% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
Openexr · Openexr
3.2.0 before 3.2.5; 3.3.0 before 3.3.6; 3.4.0 before 3.4.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-64182
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-64182
Product
https://github.com/AcademySoftwareFoundation/openexr/blob/b3a19903db0672c63055023aa788e592b16ec3c5/src/wrappers/python/PyOpenEXR_old.cpp#L528-L536
Exploit
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-vh63-9mqx-wmjr
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