AcademySoftwareFoundation OpenEXR EXR File Parser heap-based overflow

Summaryinfo

A vulnerability marked as critical has been reported in AcademySoftwareFoundation OpenEXR. This issue affects some unknown processing of the component EXR File Parser. The manipulation leads to heap-based overflow. This vulnerability is referenced as CVE-2025-12839. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in AcademySoftwareFoundation OpenEXR (the affected version is unknown) and classified as critical. This issue affects an unknown code of the component EXR File Parser. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at zerodayinitiative.com. The identification of this vulnerability is CVE-2025-12839. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 278610 (openSUSE 16 Security Update : openexr (openSUSE-SU-2025-20148-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (278610) and EUVD (EUVD-2025-204963). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• AcademySoftwareFoundation

Name

• OpenEXR

License

• open-source

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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