PT-2026-33909 · Openexr · Openexr

Published 2026-04-21 · Updated 2026-05-11 · CVE-2026-40250

Positive Technologies (AI Summary)

CVSS v4.0

8.4

High

Base vector

AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions OpenEXR versions 3.4.0 through 3.4.9 OpenEXR versions 3.3.0 through 3.3.9 OpenEXR versions 3.2.0 through 3.2.7

Description An integer overflow occurs in the reference implementation of the EXR image storage format. The issue exists in internal dwa compressor.h:1040 where the calculation chan->width * chan->bytes per element is performed using int32 arithmetic without a (size t) cast.

Recommendations Update versions 3.4.0 through 3.4.9 to 3.4.10. Update versions 3.3.0 through 3.3.9 to 3.3.10. Update versions 3.2.0 through 3.2.7 to 3.2.8.

Fix

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2026-40250

OESA-2026-2179

OESA-2026-2180

OESA-2026-2181

OPENSUSE-SU-2026:10665-1

Affected Products

Openexr

References · 25

• https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-m5qw-23x2-6phj · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40244 · Security Note
• https://ubuntu.com/security/CVE-2026-40250 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-40250 · Security Note
• https://cve.org/CVERecord?id=CVE-2026-40250 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-40250 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2026-40250 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2181 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2179 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2026-40250 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10665-1 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2180 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-40250 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-40250 · Vendor Advisory
• https://github.com/AcademySoftwareFoundation/openexr/releases/tag/v3.4.10 · Note