Is CVE-2026-34544 actively exploited?

No active exploitation of CVE-2026-34544 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34544 be exploited remotely?

No. CVE-2026-34544 requires local access to exploit.

What is the CVSS score of CVE-2026-34544?

CVE-2026-34544 has a CVSS score of 7.3 (HIGH).

HOME VULNERABILITIESCVE-2026-34544

HIGH

CVE-2026-34544

CWE-190Published: April 1, 2026· Updated: Apr 7, 2026

7.3

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.1th

Official Description

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.8, a crafted B44 or B44A EXR file can cause an out-of-bounds write in any application that decodes it via exr_decoding_run(). Consequences range from immediate crash (most likely) to corruption of adjacent heap allocations (layout-dependent). This issue has been patched in version 3.4.8.

NVD Source

Technical Analysis

CVE-2026-34544 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.3.