CVE-2025-48073: OpenEXR ScanLineProcess::run_fill NULL Pointer Write In "reduceMemory" Mode

July 31, 2025 (updated August 1, 2025)

When reading a deep scanline image with a large sample count in reduceMemory mode, it is possible to crash a target application with a NULL pointer dereference in a write operation.

References

github.com/AcademySoftwareFoundation/openexr
github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-qhpm-86v7-phmm
github.com/ShielderSec/poc/tree/main/CVE-2025-48073
github.com/advisories/GHSA-qhpm-86v7-phmm
nvd.nist.gov/vuln/detail/CVE-2025-48073

Code Behaviors & Features

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