Sipeed NanoKVM before 2.3.1 exposes a Wi-Fi configuration endpoint without proper security checks, allowing an unauthenticated attacker with network access to change the saved configured Wi-Fi network to one of the attacker's choosing, or craft a request to exhaust the system memory and terminate the KVM process.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://eclypsium.com/blog/kvm-devices-the-keys-to-your-kingdom-are-hanging-on-…
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https://github.com/sipeed/NanoKVM/blob/main/CHANGELOG.md#231-2025-12-26
9119a7d8-5eab-497f-8521-727c672e3725
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025…
9119a7d8-5eab-497f-8521-727c672e3725
https://www.cve.org/CVERecord?id=CVE-2026-32296
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