Is CVE-2021-43581 actively exploited?

No active exploitation of CVE-2021-43581 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-43581 be exploited remotely?

Yes. CVE-2021-43581 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-43581?

CVE-2021-43581 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2021-43581

CWE-125Published: November 22, 2021· Updated: Jun 17, 2026

8.8

CVSS v3.1

Official Description

An Out-of-Bounds Read vulnerability exists when reading a U3D file using Open Design Alliance PRC SDK before 2022.11. The specific issue exists within the parsing of U3D files. Incorrect use of the LibJpeg source manager inside the U3D library, and crafted data in a U3D file, can trigger a read past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.

NVD Source

Technical Analysis

CVE-2021-43581 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

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 8.8.