CVE-2026-34910—Ubiquiti UniFi OS Improper Input Validation Vulnerability
PUBLISHEDvulnerability record
2026-06-23 · last modified June 23, 2026
Metadata
Vulnerability Name
Ubiquiti UniFi OS Improper Input Validation Vulnerability
Description
Ubiquiti UniFi OS contains an improper input validation vulnerability which could allow a malicious actor with access to the network to conduct command injection.
Known To Be Used in Ransomware Campaigns?
Action
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.