CVE-2025-41426
published 2025-05-21CVE-2025-41426: Affected Vertiv products contain a stack based buffer overflow vulnerability. An attacker could exploit this vulnerability to gain code execution on the device.
PriorityP261critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
0.68%
47.7th percentile
Affected Vertiv products contain a stack based buffer overflow vulnerability. An attacker could exploit this vulnerability to gain code execution on the device.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| vertiv | liebert_is-unity | <= 8.4.1.0 | — |
| vertiv | liebert_rdu101 | <= 1.9.0.0 | — |
Detection & IOCsextracted from sources · hover to see the quote
- →CVE-2025-41426 is a stack-based buffer overflow (CWE-121) in Vertiv Liebert RDU101 (versions 1.9.0.0 and prior) and Liebert IS-UNITY (versions 8.4.1.0 and prior), exploitable remotely with no authentication and low complexity — prioritize detection on network traffic to these devices from untrusted sources. ↗
- →The vulnerability is network-exploitable with no privileges required and no user interaction (CVSS vector AV:N/AC:L/PR:N/UI:N), making it suitable for detection via anomaly-based IDS rules targeting oversized or malformed input to the affected devices' network services. ↗
- →CVE-2025-41426 is frequently paired with CVE-2025-46412 (authentication bypass, CWE-288) on the same affected products — monitor for chained exploitation where authentication bypass precedes buffer overflow attempts. ↗
- ·Liebert RDU101 versions 1.9.0.0 and prior are vulnerable; patched version is v1.9.1.2_0000001. ↗
- ·Liebert IS-UNITY versions 8.4.1.0 and prior are vulnerable; patched version is v8.4.3.1_00160. ↗
- ·No known public exploitation specifically targeting these vulnerabilities has been reported at time of advisory publication (May 20, 2025). ↗
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.09.3CRITICALCVSS: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:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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CISA ICS
Vertiv Liebert RDU101 and UNITY
cisa_ics·2025-05-20·CVSS 9.8
[CRITICAL] Vertiv Liebert RDU101 and UNITY
ICS Advisory
##
Vertiv Liebert RDU101 and UNITY
Release DateMay 20, 2025
Alert CodeICSA-25-140-10
Related topics:
Industrial Control System Vulnerabilities, Industrial Control Systems
View CSAF
## 1. EXECUTIVE SUMMARY
- CVSS v4 9.3
- ATTENTION: Exploitable remotely/low attack complexity
- Vendor: Vertiv
- Equipment: Liebert RDU101 and Liebert UNITY
- Vulnerabilities: Authentication Bypass Using an Alternate Path or Channel, Stack-based Buffer Overflow
## 2. RISK EVALUATION
Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition or achieve remote code execution
## 3. TECHNICAL DETAILS
## 3.1 AFFECTED PRODUCTS
The following Vertiv products are affected:
- Liebert RDU101: Versions 1.9.0.0 and prio
GHSA
GHSA-h5xv-74x6-xp2m: Affected Vertiv products contain a stack based buffer overflow vulnerability
ghsa_unreviewed·2025-05-21
CVE-2025-41426 [CRITICAL] CWE-121 GHSA-h5xv-74x6-xp2m: Affected Vertiv products contain a stack based buffer overflow vulnerability
Affected Vertiv products contain a stack based buffer overflow vulnerability. An attacker could exploit this vulnerability to gain code execution on the device.
No detection rules found.
No public exploits indexed.
2025-05-21
Published