CVE-2026-95861
High
Description
A malicious actor with access to the network could exploit an Uncontrolled Recursion vulnerability found in certain UniFi gateway devices to execute a Denial of Service (DoS) attack on the device.
SeverityHigh
CVSS7.5
Exploit probability—
Product
UniFi Gateways
PublishedSep 22, 2026
First seenSep 22, 2026
Weakness typeCWE-674CWE-674
How to fix
Update
- Ubiquiti Inc UniFi Gateways5.1.26 or later
- Ubiquiti Inc Dream Machines5.1.31 or later
- Ubiquiti Inc Enterprise Firewalls5.1.31 or later
- Ubiquiti Inc Dream Routers5.1.31 or later
- Ubiquiti Inc Cloud Gateways5.1.31 or later
- Ubiquiti Inc Dream Wall5.1.31 or later
- Ubiquiti Inc Express4.0.21 or later
- Ubiquiti Inc Express 75.1.31 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Ubiquiti Inc UniFi Gateways | v < 5.1.26 | 5.1.26 |
| Ubiquiti Inc Dream Machines | v < 5.1.31 | 5.1.31 |
| Ubiquiti Inc Enterprise Firewalls | v < 5.1.31 | 5.1.31 |
| Ubiquiti Inc Dream Routers | v < 5.1.31 | 5.1.31 |
| Ubiquiti Inc Cloud Gateways | v < 5.1.31 | 5.1.31 |
| Ubiquiti Inc Dream Wall | v < 5.1.31 | 5.1.31 |
| Ubiquiti Inc Express | v < 4.0.21 | 4.0.21 |
| Ubiquiti Inc Express 7 | v < 5.1.31 | 5.1.31 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.