🛡️ CVE-2026-42217
🔴 CVSS 9.8 — Critical ⚠️ Exploit Public CWE-190 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, readVariableLengthInteger() decodes a variable-length integer from untrusted EXR input without bounding the shift count. After enough continuation bytes, the code executes a left shift by 70 on a 64-bit value, which is undefined behavior. This issue has been patched in versions 3.2.9, 3.3.11, and 3.4.11.

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-190
Public Exploit ⚠️ Yes
Source NVD
Published 2026-05-07
Updated 2026-06-02
Modified 2026-05-08

Affected Packages

Software From version Fixed in
openexr 3.4.0 3.4.11
unknown — —

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