CVE-2026-81936
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with an admin-level account, but needs a user to act. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.1 HIGH (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-1392
- Record status
- Awaiting Analysis
Attack profile CVSS 4.0 · 7.1
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- Present
- Privileges needed
- High
- User interaction
- Active
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/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
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-81936.md and follow it. Check whether this project is affected by CVE-2026-81936. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
