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6.3
CVE-2026-42217: OpenEXR: Malicious images can cause system crashes
CVE-2026-42217
Summary
The OpenEXR software is used in the film industry to store images. If an attacker sends a specially crafted image, it could cause the system to crash. Users should update to the latest version of OpenEXR to fix this issue.
What to do
No fix is available yet. Check with your software vendor for updates.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| openexr | openexr |
>= 3.0.0, < 3.2.9 >= 3.3.0, < 3.3.11 >= 3.4.0, < 3.4.11 cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:* |
Original title
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...
Original 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.
nvd CVSS4.0
6.3
Vulnerability type
CWE-190
Integer Overflow
Published: 7 May 2026 · Updated: 2 Jul 2026 · First seen: 7 May 2026