CVE-2025-12840: high-severity vulnerability in Academy Software Foundation OpenEXR
Academy Software Foundation OpenEXR EXR File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.2%
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-27948.
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Academy Software Foundation · OpenEXRRelated CVEs — Academy Software Foundation OpenEXR
In the same product, most dangerous first.
CVE-2023-5841CRITICALOpenEXR Heap Overflow in Scanline Deep Data ParsingEPSS 1.2%CVE-2025-12839HIGHAcademy Software Foundation OpenEXR EXR File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.2%CVE-2025-12495HIGHAcademy Software Foundation OpenEXR EXR File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.2%