What is CVE-2021-44041?

CVE-2021-44041 is a critical-severity vulnerability in Uipath Assistant, classified under Externally Controlled Reference to a Resource in Another Sphere. CVSS score: 9.8/10. Published 2021-12-14.

How severe is CVE-2021-44041?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Uipath Assistant

CVE-2021-44041

UiPath Assistant 21.4.4 will load and execute attacker controlled data from the file path supplied to the --dev-widget argument of the URI handler for uipath-assistant://. This allows an attacker to execute code on a victim's machine or capture NTLM credentials by supplying a networked or WebDAV file path.

Published 2021-12-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.017 (76.9th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 77th percentile — 76.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.017 · newest: 0.017 · change: 0.000

Affected products

Uipath Assistant — versions 21.4.4

Weakness classification (CWE)

CWE-610 — Externally Controlled Reference to a Resource in Another Sphere

References

docs.uipath.com/robot/docs/uipath-assistant (Product)
docs.uipath.com/robot/docs/release-notes-2021-10-4 (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2021-44041?: CVE-2021-44041 is a critical-severity vulnerability in Uipath Assistant, classified under Externally Controlled Reference to a Resource in Another Sphere. CVSS score: 9.8/10. Published 2021-12-14.
How severe is CVE-2021-44041?: Critical severity. CVSS v3 base score is 9.8 out of 10.