What’s Vulnerable › Vulnerabilities

CVE-2024-4017: Privilege Escalation in U-Series Appliance

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-04-19 · updated 2026-06-17
• Weakness: CWE-269

Description

Improper Privilege Management vulnerability in BeyondTrust U-Series Appliance on Windows, 64 bit (filesystem modules) allows DLL Side-Loading.This issue affects U-Series Appliance: from 3.4 before 4.0.3.

Affected products

• BeyondTrust U-Series Appliance: from 3.4 before 4.0.3 — fixed in 4.0.3

How to fix

Upgrade to a fixed version: BeyondTrust U-Series Appliance 4.0.3. Check the vendor advisory for mitigations.

References

• https://www.beyondtrust.com/docs/release-notes/u-series-appliance/bt-appliance-u-series-software-4-0-3.htm
• https://www.beyondtrust.com/docs/release-notes/u-series-appliance/bt-appliance-u-series-software-4-0-3.htm

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