#VU109793 Stack-based buffer overflow in Liebert RDU101 and Liebert IS-UNITY - CVE-2025-41426

Vulnerability identifier: #VU109793

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-41426

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Liebert RDU101
Hardware solutions / Firmware
Liebert IS-UNITY
Hardware solutions / Firmware

Vendor: Vertiv

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Liebert RDU101: - - 1.9.0.0

Liebert IS-UNITY: - - 8.4.1.0

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External links
https://www.cisa.gov/news-events/ics-advisories/icsa-25-140-10
https://www.vertiv.com/en-us/support/security-support-center/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.