Is CVE-2021-43279 actively exploited?

No active exploitation of CVE-2021-43279 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-43279 be exploited remotely?

No. CVE-2021-43279 requires local access to exploit.

What is the CVSS score of CVE-2021-43279?

CVE-2021-43279 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2021-43279

HIGH

CVE-2021-43279

CWE-787Published: November 14, 2021· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

An out-of-bounds write vulnerability exists in the U3D file reading procedure in Open Design Alliance PRC SDK before 2022.10. Crafted data in a U3D file can trigger a write past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process.

NVD Source

Technical Analysis

CVE-2021-43279 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.