Vulnerability · Published Jan 21, 2026 · Assigned by cisco
CVE-2026-20080Cisco IEC6400 Edge Compute Appliance SSH Denial of Service Vulnerability
Medium 5.3
In plain English
A medium-severity uncontrolled resource consumption in Cisco Ultra-Reliable Wireless Backhaul from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).
Official description
A vulnerability in the SSH service of Cisco IEC6400 Wireless Backhaul Edge Compute Software could allow an unauthenticated, remote attacker to cause the SSH service to stop responding. This vulnerability exists because the SSH service lacks effective flood protection. An attacker could exploit this vulnerability by initiating a denial of service (DoS) attack against the SSH port. A successful exploit could allow the attacker to cause the SSH service to be unresponsive during the period of the DoS attack. All other operations remain stable during the attack.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Ultra-Reliable Wireless Backhaul | 1.0.01.1.01.0.21.0.1 |
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L