CVSS 4.0
7.1 highCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCVE-2026-81936 Default OpenBMC Root Credential Reintroduced After Reset to Defaults in ThinkSystem v4 XCC3
High (7.1) in lenovo xclarity controller. EPSS 0.3% estimated probability of exploitation activity in the next 30 days.
An internal security review identified a development regression from ThinkSystem v4 XClarity Controller 3 (XCC3) versions (2.51) IHX432Y to (2.56) IHX436K which re-introduces the default OpenBMC root password upon performing an XCC Reset to Default operation. An attacker can gain access to enabled administrative interfaces of XCC using the default OpenBMC credential re-introduced after Reset to Default. Additionally, this provides access to the underlying XCC Operating System which is not normally accessible. Only these versions are affected and are no longer available for download. Process enhancements have also been made to prevent and identify potential future regression.
Severity
CVSS 3.1
6.8 mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H- EPSS
- 0.3% estimated probability of exploitation activity in the next 30 days; 29th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
- CWE
- CWE-1392 Use of Default Credentials
- OWASP Top 10
- A07:2025 Authentication Failures
- Published
- Modified
- Assigned by
- lenovo (CNA)
- NVD analysis
- Awaiting analysis
- Record from
- the NVD, synced
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Affected
- lenovo:xclarity controller
Versions
From the CNA's record in the CVE List.
| Product | Affected |
|---|---|
| Lenovo XClarity Controller | from IHX432Y through IHX436K |