Vulnerability in Academysoftwarefoundation Openexr
CVE-2025-64181
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (34.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: +0.000
Affected products
- Academysoftwarefoundation Openexr — versions >= 3.3.0, < 3.3.6, >= 3.4.0, < 3.4.3
- Openexr
Weakness classification (CWE)
References
- github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-3h9h-qfvw… (Exploit, Vendor Advisory)
- github.com/user-attachments/files/23024726/archive0.zip (Broken Link)
- github.com/user-attachments/files/23024736/archive1.zip (Broken Link)
- github.com/user-attachments/files/23024740/archive2.zip (Broken Link)
- github.com/user-attachments/files/23024744/archive3.zip (Broken Link)
- github.com/user-attachments/files/23024746/archive4.zip (Broken Link)
Frequently asked questions
- What is CVE-2025-64181?
- CVE-2025-64181 is a high-severity vulnerability in Academysoftwarefoundation Openexr, classified under CWE-457. CVSS score: 7.5/10. Published 2025-11-10.
- How severe is CVE-2025-64181?
- High severity. CVSS v3 base score is 7.5 out of 10.