Summary
generated automatically from NVD dataCVE-2026-34908 is an Improper Access Control flaw (CWE-284) in UniFi OS devices, including UniFi OS Server and several UniFi Dream Machine, Cloud Gateway Industrial, Dream Wall and Enterprise Fortress Gateway firmware. A malicious actor with network access could make unauthorized changes to the system. It is rated CRITICAL with a CVSS v3.1 score of 10.0 (network-exploitable, no privileges or user interaction required), and CISA's KEV catalog lists it as actively exploited.
NVD description
A malicious actor with access to the network could exploit an Improper Access Control vulnerability found in UniFi OS devices to make unauthorized changes to the system.
⚠️ Actively exploited — CISA KEV
This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-06-23. It is confirmed exploited in the wild and must be patched as a priority.
Remediation deadline (US federal agencies): 2026-06-26
EPSS · FIRST.org
15.2%probability of exploitation in the next 30 days
Higher than 96% of scored CVEs
EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.
In-depth analysis on cveo.tech
We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.
CVSS v3.1 Score
Information
- Published
- 22 mai 2026
- Updated
- 23 juil. 2026
- Status
- Analyzed
- Source
- support@hackerone.com
Affected products
Weaknesses (CWE)
References (3)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34908US Government Resource
- https://www.pwndefend.com/2026/06/09/cve-2026-34910-exploitation-itw-building-a-botnet-mirai/ExploitThird Party Advisory
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