CVE-2026-34910: CWE-20 Improper Input Validation in Ubiquiti Inc UniFi OS Server
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
AI Analysis
Technical Summary
CVE-2026-34910 is an Improper Input Validation vulnerability (CWE-20) in Ubiquiti Inc's UniFi OS Server that can be exploited by a malicious actor with network access to perform command injection. The vulnerability requires no privileges or user interaction and has a CVSS 3.1 score of 10.0, reflecting critical impact on confidentiality, integrity, and availability. The vulnerability is published and assigned by HackerOne but currently lacks an official remediation level or patch. The affected versions are not clearly specified beyond '0'. No known exploits have been reported in the wild.
Potential Impact
Successful exploitation allows an unauthenticated attacker with network access to execute arbitrary commands on the UniFi OS Server, potentially leading to full system compromise. This impacts confidentiality, integrity, and availability of the affected system. No known exploits are currently active in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary mitigation is currently documented, users should restrict network access to UniFi OS Server devices and monitor for updates from Ubiquiti Inc. Avoid exposing the device to untrusted networks until a patch is available.
CVE-2026-34910: CWE-20 Improper Input Validation in Ubiquiti Inc UniFi OS Server
Description
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-34910 is an Improper Input Validation vulnerability (CWE-20) in Ubiquiti Inc's UniFi OS Server that can be exploited by a malicious actor with network access to perform command injection. The vulnerability requires no privileges or user interaction and has a CVSS 3.1 score of 10.0, reflecting critical impact on confidentiality, integrity, and availability. The vulnerability is published and assigned by HackerOne but currently lacks an official remediation level or patch. The affected versions are not clearly specified beyond '0'. No known exploits have been reported in the wild.
Potential Impact
Successful exploitation allows an unauthenticated attacker with network access to execute arbitrary commands on the UniFi OS Server, potentially leading to full system compromise. This impacts confidentiality, integrity, and availability of the affected system. No known exploits are currently active in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or temporary mitigation is currently documented, users should restrict network access to UniFi OS Server devices and monitor for updates from Ubiquiti Inc. Avoid exposing the device to untrusted networks until a patch is available.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- hackerone
- Date Reserved
- 2026-03-31T15:00:06.521Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a0fb18ae1370fbb487050df
Added to database: 5/22/2026, 1:29:46 AM
Last enriched: 5/22/2026, 1:44:50 AM
Last updated: 5/22/2026, 3:52:13 PM
Views: 42
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