CVE Watch15 jul 2026

CVE-2026-34588

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

CVSS

7.8

Alto

EPSS

0.5%

p38

KEV

—

Exploit Today

0-100

Publicado: 6 abr 2026 · Última mod.: 15 jul 2026 · CWE-125 · CWE-190 · CWE-787

EPSS · 30d

0.5%EPSS · 30 días0.5%

2026-06-302026-07-17

Descripción técnica

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.1.0 to before 3.2.7, 3.3.9, and 3.4.9, internal_exr_undo_piz() advances the working wavelet pointer with signed 32-bit arithmetic. Because nx, ny, and wcount are int, a crafted EXR file can make this product overflow and wrap. The next channel then decodes from an incorrect address. The wavelet decode path operates in place, so this yields both out-of-bounds reads and out-of-bounds writes. This vulnerability is fixed in 3.2.7, 3.3.9, and 3.4.9.

Referencias oficiales

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