CVE-2025-64181

7.5 HIGH
Published: November 10, 2025 Modified: December 08, 2025

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-3h9h-qfvw-98hq
Source: security-advisories@github.com
Exploit Vendor Advisory
https://github.com/user-attachments/files/23024726/archive0.zip
Source: security-advisories@github.com
Broken Link
https://github.com/user-attachments/files/23024736/archive1.zip
Source: security-advisories@github.com
Broken Link
https://github.com/user-attachments/files/23024740/archive2.zip
Source: security-advisories@github.com
Broken Link
https://github.com/user-attachments/files/23024744/archive3.zip
Source: security-advisories@github.com
Broken Link
https://github.com/user-attachments/files/23024746/archive4.zip
Source: security-advisories@github.com
Broken Link
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-3h9h-qfvw-98hq
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Vendor Advisory

7 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
0.0%
14th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

openexr