CVE-2025-64182
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-11-10

Last updated on: 2025-12-08

Assigner: GitHub, Inc.

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.
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Meta Information
Published
2025-11-10
Last Modified
2025-12-08
Generated
2026-06-16
AI Q&A
2025-11-11
EPSS Evaluated
2026-06-15
NVD
CVE-2025-64182
EUVD
EUVD-2025-50827
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
openexr openexr From 3.2.0 (inc) to 3.2.5 (exc)
openexr openexr From 3.3.0 (inc) to 3.3.6 (exc)
openexr openexr From 3.4.0 (inc) to 3.4.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-120 The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
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Executive Summary

This vulnerability is a memory safety bug in the legacy OpenEXR Python adapter (the deprecated OpenEXR.InputFile wrapper) present in certain versions of OpenEXR. It involves integer overflow and unchecked memory allocation in the InputFile.channel() and InputFile.channels() functions, which can lead to heap overflow on 32-bit systems or a NULL pointer dereference on 64-bit systems. This can cause crashes and potentially allow code execution when opening specially crafted EXR files or passing crafted Python objects.

Impact Analysis

The vulnerability can cause application crashes and potentially allow an attacker to execute arbitrary code when processing malicious EXR files or crafted Python objects using the affected OpenEXR Python adapter versions. This could lead to denial of service or compromise of the system running the vulnerable software.

Mitigation Strategies

To mitigate this vulnerability, update OpenEXR to versions 3.2.5, 3.3.6, or 3.4.3 or later, which contain patches for the issue. Avoid opening untrusted or attacker-controlled EXR files using the legacy OpenEXR Python adapter until the update is applied.

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