CVE-2026-34908
- State
- Published
- Severity
- 10.0 Critical
- Published
- May 22, 2026
- Updated
- Jun 24, 2026
- Reserved
- Mar 31, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 10.0 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | hackerone |
Weaknesses
- CWE-284 Improper Access Control - Generic
Affected Products
| Product | Versions |
|---|---|
UniFi OS ServerUbiquiti Inc |
|
UDMUbiquiti Inc |
|
UDM-ProUbiquiti Inc |
|
UDM-SEUbiquiti Inc |
|
UDM-Pro-MaxUbiquiti Inc |
|
UDM-BeastUbiquiti Inc |
|
EFGUbiquiti Inc |
|
UDWUbiquiti Inc |
|
UDRUbiquiti Inc |
|
UDR7Ubiquiti Inc |
|
UDR-5GUbiquiti Inc |
|
Express 7Ubiquiti Inc |
|
UNVRUbiquiti Inc |
|
UNVR-ProUbiquiti Inc |
|
UNVR-InstantUbiquiti Inc |
|
UNVR-G2Ubiquiti Inc |
|
UNVR-G2-ProUbiquiti Inc |
|
ENVRUbiquiti Inc |
|
ENVR-CoreUbiquiti Inc |
|
UNAS-2Ubiquiti Inc |
|
UNAS-4Ubiquiti Inc |
|
UNAS-ProUbiquiti Inc |
|
UNAS-Pro-4Ubiquiti Inc |
|
UNAS-Pro-8Ubiquiti Inc |
|
UCKPUbiquiti Inc |
|
UCKUbiquiti Inc |
|
UCK-EnterpriseUbiquiti Inc |
|
UCG-UltraUbiquiti Inc |
|
UCG-MaxUbiquiti Inc |
|
UCG-FiberUbiquiti Inc |
|
UCG-IndustrialUbiquiti Inc |
|
References
- https://community.ui.com/releases/Security-Advisory-Bulletin-064-064/84811c09-4cf4-42ab-bd61-cc994445963b
- https://www.pwndefend.com/2026/06/09/cve-2026-34910-exploitation-itw-building-a-botnet-mirai/third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-34908government-resource
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