CVE WatchJul 15, 2026

CVE-2026-40244

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture indus

CVSS

7.1

High

EPSS

0.4%

p35

KEV

—

Exploit Today

0-100

Published: Apr 21, 2026 · Last modified: Jul 15, 2026 · CWE-190

EPSS · 30d

0.4%EPSS · 30 days0.4%

2026-06-302026-07-19

Technical description

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, `internal_dwa_compressor.h:1722` performs `curc->width * curc->height` in `int32` arithmetic without a `(size_t)` cast. This is the same overflow pattern fixed in other locations by the recent CVE-2026-34589 batch, but this line was missed. Versions 3.4.10, 3.3.10, and 3.2.8 contain a fix that addresses `internal_dwa_compressor.h:1722`.

Official references

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