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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
AcademySoftwareFoundation openexr affected
Version Status Constraints
>= 3.2.0, < 3.2.11 affected —
>= 3.3.0, < 3.3.13 affected —
>= 3.4.0, < 3.4.14 affected —

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Project Subscriptions

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.2.11 cve-icon cve-icon
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.3.13 cve-icon cve-icon
https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.14 cve-icon cve-icon
https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-v6v5-344m-64vm cve-icon cve-icon cve-icon
History

Tue, 25 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 25 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Description 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.
Title OpenEXR: Heap out-of-bounds read in OpenEXRCore RLE decoding on ILP32
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-25T19:16:49.514Z

Reserved: 2026-07-07T19:41:00.004Z

Link: CVE-2026-59985

cve-icon Vulnrichment

Updated: 2026-08-25T19:16:40.362Z

cve-icon NVD

Status : Received

Published: 2026-08-25T19:16:51.820

Modified: 2026-08-25T20:16:59.163

Link: CVE-2026-59985

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-25T20:15:04Z

Weaknesses