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OpenAdvisories
High · 7.8 CVE-2025-12839 EUVD-2025-204963GHSA-7q38-vqq7-45c9

Academy Software Foundation OpenEXR EXR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability

Published Dec 23, 2025 · Updated Dec 24, 2025 · Assigned by zdi

Description

Academy Software Foundation OpenEXR EXR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Academy Software Foundation OpenEXR. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of EXR files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-27947.

Affected products

VendorProductAffectedFixed
Academy Software Foundation OpenEXR 3.4.0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 openexr 3.4.6+ds-1 —
Debian 13 openexr No fix yet —
Debian 12 openexr No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 openexr No fix yet —
Ubuntu 25.10 openexr No fix yet —
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 26.04 LTS openexr No fix yet —
Ubuntu Pro 24.04 LTS openexr No fix yet —
ReleasePackageFixed inAdvisory
SLES for SAP 16.0 openexr 3.2.2-160000.4.1 SUSE-SU-2025:21189-1
SLES 16.0 openexr 3.2.2-160000.4.1 SUSE-SU-2025:21189-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed openexr 3.4.3-2.1 openSUSE-SU-2025:15759-1
openSUSE Leap 16.0 openexr 3.2.2-160000.4.1 openSUSE-SU-2025:20148-1

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 openexr +2 3.1.5-1.amzn2023.0.6 ALAS2023-2026-1364

Advisories 4

References