CVE-2025-64181 Details
Description
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.5 and 3.4.0 through 3.4.2, while fuzzing `openexr_exrcheck_fuzzer`, Valgrind reports a conditional branch depending on uninitialized data inside `generic_unpack`. This indicates a use of uninitialized memory. The issue can result in undefined behavior and/or a potential crash/denial of service. Versions 3.3.6 and 3.4.3 fix the issue.
A vulnerability has been identified in OpenEXR versions 3.3.0 through 3.3.5 and 3.4.0 through 3.4.2. While fuzzing the OpenEXR 'exrcheck' fuzzer, Valgrind detected a conditional branch in the 'generic_unpack' function that relied on uninitialized data. This issue suggests a use of uninitialized memory, which can lead to undefined behavior and potentially cause a crash or denial-of-service condition.
Users can upgrade to OpenEXR versions 3.3.6 or 3.4.3, which address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Nov 12, 2025References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-457 | Use of Uninitialized Variable | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openexr openexr | >= 3.3.0, < 3.3.6 >= 3.4.0, < 3.4.3 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Dec 8, 2025 | Initial Analysis | [email protected] |
| Nov 12, 2025 | CVE Modified | CISA-ADP |
| Nov 10, 2025 | New CVE Received | [email protected] |