What’s Vulnerable › Vulnerabilities

CVE-2025-48074: OpenEXR's Unbounded File Header Values can Lead to Out-Of-Memory Errors

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-08-01 · updated 2026-06-17
• Weakness: CWE-770

Description

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In version 3.3.2, applications trust unvalidated dataWindow size values from file headers, which can lead to excessive memory allocation and performance degradation when processing malicious files. This is fixed in version 3.3.3.

Affected products

• AcademySoftwareFoundation openexr: 3.3.2

References

• https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-x22w-82jp-8rvf
• https://github.com/ShielderSec/poc/tree/main/CVE-2025-48074

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