CVE-2021-44041: UiPath Assistant 21.4.4 will load and execute attacker controlled data from the file path supplied to the --de

This month

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2021-44041 is a critical-severity flaw (CVSS 9.8) affecting assistant. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Weakness	CWE-610
Published	2021-12-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: uipath

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-12-14 18:15 UTCPublished CVE record published
2026-06-17 04:11 UTCUpdated Record last modified

uipath assistant DOWNGRADE

Affected: 21.4.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 21.4.4

1. Check installed version

apt-cache policy assistant || rpm -q assistant || assistant --version

2. No fixed release: DOWNGRADE to a release before 21.4.4 (Debian / Ubuntu)

apt-cache madison assistant sudo apt install assistant=<VERSION_BEFORE_21.4.4> sudo apt-mark hold assistant

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list assistant sudo dnf downgrade assistant-<VERSION_BEFORE_21.4.4> sudo dnf versionlock add assistant

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-44041?

assistant: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-44041 being exploited?

CVE-2021-44041 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-44041 affect?

CVE-2021-44041 affects assistant. Severity is critical (CVSS 9.8). 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 cap

How urgent is CVE-2021-44041?

Priority 59/100. Critical severity; Remotely exploitable, no login, no user action

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References

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