CVE-2026-42217
Severity CVSS v4.0:
MEDIUM
Type:
CWE-190
Integer Overflow or Wraparound
Publication date:
07/05/2026
Last modified:
08/05/2026
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.
Impact
Base Score 4.0
6.30
Severity 4.0
MEDIUM
Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* | 3.0.0 (including) | 3.2.9 (excluding) |
| cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* | 3.3.0 (including) | 3.3.11 (excluding) |
| cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* | 3.4.0 (including) | 3.4.11 (excluding) |
To consult the complete list of CPE names with products and versions, see this page