Summary
generated automatically from NVD dataCVE-2026-34910 is an Improper Input Validation flaw (CWE-20) in UniFi OS devices, including UniFi OS Server and several Dream Machine, Dream Wall, Cloud Gateway Industrial and Enterprise Fortress Gateway products. A network-adjacent attacker with network access could exploit it to perform command injection, without authentication or user interaction. It is rated CRITICAL with a CVSS v3.1 score of 10.0, and CISA lists it in the KEV catalog, which indicates active exploitation.
NVD 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.
⚠️ 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
45.8%probability of exploitation in the next 30 days
Higher than 98% 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-2026-34910US 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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