What is CVE-2025-15506?

CVE-2025-15506 is a low-severity vulnerability in Academysoftwarefoundation Opencolorio, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-01-11.

How severe is CVE-2025-15506?

Low severity. CVSS v3 base score is 3.3 out of 10.

Buffer overflow in Academysoftwarefoundation Opencolorio

CVE-2025-15506

A vulnerability was found in AcademySoftwareFoundation OpenColorIO up to 2.5.0. This issue affects the function ConvertToRegularExpression of the file src/OpenColorIO/FileRules.cpp. Performing a manipulation results in out-of-bounds read. The attack needs to be approached locally. The exploit has been made public and could be used. The patch is named ebdbb75123c9d5f4643e041314e2bc988a13f20d. To fix this issue, it is recommended to deploy a patch. The fix was added to the 2.5.1 milestone.

Vulnerability class: Buffer Overflow

Published 2026-01-11 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.002 (7.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 7th percentile — 7.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: +0.000

Affected products

Academysoftwarefoundation Opencolorio — versions 2.0, 2.1, 2.2

Weakness classification (CWE)

References

vuldb.com/ (technical-description, vdb-entry)
vuldb.com/ (signature, permissions-required)
vuldb.com/ (third-party-advisory)
github.com/AcademySoftwareFoundation/OpenColorIO/issues/2228 (issue-tracking)
github.com/AcademySoftwareFoundation/OpenColorIO/pull/2231 (issue-tracking)
github.com/oneafter/1225/blob/main/uaf (exploit)
github.com/cozdas/OpenColorIO/commit/ebdbb75123c9d5f4643e041314e2bc988a13f20d (patch)
github.com/AcademySoftwareFoundation/OpenColorIO/milestone/11 (patch)
github.com/AcademySoftwareFoundation/OpenColorIO/ (product)

Frequently asked questions

What is CVE-2025-15506?: CVE-2025-15506 is a low-severity vulnerability in Academysoftwarefoundation Opencolorio, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 3.3/10. Published 2026-01-11.
How severe is CVE-2025-15506?: Low severity. CVSS v3 base score is 3.3 out of 10.