Is CVE-2026-43903 actively exploited?

No active exploitation of CVE-2026-43903 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-43903 be exploited remotely?

No. CVE-2026-43903 requires local access to exploit.

What is the CVSS score of CVE-2026-43903?

CVE-2026-43903 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2026-43903

HIGH

CVE-2026-43903

CWE-787Published: May 14, 2026· Updated: May 15, 2026

7.8

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:2.2th

Official Description

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

NVD Source

Technical Analysis

CVE-2026-43903 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

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 7.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.