CVE-2026-59985
OpenEXR: Heap out-of-bounds read in OpenEXRCore RLE decoding on ILP32
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. OpenEXR versions 3.2.0 through 3.2.10, 3.3.0 through 3.3.12, and 3.4.0 through 3.4.13 are vulnerable on ILP32 builds to a heap out-of-bounds read. The issue occurs when a crafted RLE-compressed EXR causes the 64-bit unpacked size to truncate before allocation in OpenEXRCore decoding.c and unpack_32bit() reads beyond the resulting buffer, allowing denial of service. This issue is fixed in versions 3.2.11, 3.3.13, and 3.4.14.
| CWE | CWE-125 |
| Vendor | academysoftwarefoundation |
| Product | openexr |
| Published | Aug 25, 2026 |
| Last Updated | Aug 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
AcademySoftwareFoundation / openexr
>= 3.2.0, < 3.2.11 >= 3.3.0, < 3.3.13 >= 3.4.0, < 3.4.14
References
github.com: https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-v6v5-344m-64vm github.com: https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.11 github.com: https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.13 github.com: https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.14