CVE-2021-44029

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-12-22 · updated 2026-06-17
Weakness: CWE-502

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.

Affected products

Quest Kace Desktop Authority: from 10.0 before 11.2 — fixed in 11.2

How to fix

Upgrade to a fixed version: Quest Kace Desktop Authority 11.2. Check the vendor advisory for mitigations.

References

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