Is CVE-2021-44029 actively exploited?

No active exploitation of CVE-2021-44029 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-44029 be exploited remotely?

Yes. CVE-2021-44029 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-44029?

CVE-2021-44029 has a CVSS score of 9.8 (CRITICAL).

HOME VULNERABILITIESCVE-2021-44029

CRITICAL

CVE-2021-44029

CWE-502Published: December 22, 2021· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An issue was discovered in Quest KACE Desktop Authority before 11.2. This vulnerability allows attackers to execute remote code through a deserialization exploitation in the RadAsyncUpload function of ASP.NET AJAX. An attacker can leverage this vulnerability when the encryption keys are known (due to the presence of CVE-2017-11317, CVE-2017-11357, or other means). A default setting for the type whitelisting feature in more current versions of ASP.NET AJAX prevents exploitation.

NVD Source

Technical Analysis

CVE-2021-44029 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

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 9.8.

From a weakness classification perspective (CWE-502): Insecure deserialization vulnerabilities allow attackers to inject malicious objects during deserialization, potentially enabling remote code execution.