CVE•Published 2026-05-07•Modified 2026-05-08•1 article on news•5 live references•NVD data

CVE-2026-42217Openexr · Openexr

Vulnerability data via NVD (ingested)

CVSS v3.1

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS percentile

—

Weaknesses (CWE)

CWE-190Integer Overflow or Wraparound

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.

Timeline

Published 2026-05-07

Modified 2026-05-08

External references

NVD MITRE Exploit-DB Sploitus VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-42217

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Openexr Openexr"

All exposed Openexr Openexr instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Openexr"

HTTP body or banner mentions "Openexr" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-42217