Heap-based Buffer Overflow in OpenEXR by Academy Software Foundation
CVE-2025-12495

7.8HIGH

Key Information:

Vendor

Academy Software Foundation

Status
Openexr
Vendor
CVE Published:
23 December 2025

What is CVE-2025-12495?

A vulnerability exists in the OpenEXR product by the Academy Software Foundation due to improper validation of user-supplied data length during the parsing of EXR files. This flaw can lead to a heap-based buffer overflow, enabling attackers to execute arbitrary code on compromised installations. Exploitation requires user interaction, as the targeted user must open a malicious file or visit a compromised webpage. Proper security measures should be taken to mitigate the risks associated with this vulnerability.

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Affected Version(s)

OpenEXR 3.4.0

References

https://www.zerodayinitiative.com/advisories/ZDI-25-989/
x_research-advisory

CVSS V3.0

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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