Is CVE-2021-44047 actively exploited?

No active exploitation of CVE-2021-44047 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-44047 be exploited remotely?

No. CVE-2021-44047 requires local access to exploit.

What is the CVSS score of CVE-2021-44047?

CVE-2021-44047 has a CVSS score of 7.8 (HIGH).

HOME VULNERABILITIESCVE-2021-44047

HIGH

CVE-2021-44047

CWE-416Published: December 5, 2021· Updated: Jun 17, 2026

7.8

CVSS v3.1

Official Description

A use-after-free vulnerability exists when reading a DWF/DWFX file using Open Design Alliance Drawings SDK before 2022.11. The specific issue exists with parsing DWF/DWFX files. Crafted data in a DWF/DWFX file and lack of proper validation of input data can trigger a write operation 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-2021-44047 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-416): Use-after-free vulnerabilities involve accessing memory after it has been freed, often enabling arbitrary code execution.