CVE-2026-20080
Cisco IEC6400 Edge Compute Appliance SSH Denial of Service Vulnerability
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.
Weakness: CWE-400
Affected products
| Vendor | Product | Category | Matched by |
|---|---|---|---|
| Cisco | Cisco Ultra-Reliable Wireless Backhaul | Routing & Switching | cna-assigner |
Vendor-reported products (1)
- Cisco · Cisco Ultra-Reliable Wireless Backhaul
Vendor advisory
Cisco IEC6400 Wireless Backhaul Edge Compute Software SSH Denial of Service Vulnerability
Cisco’s rating: Medium (advisory CVSS 5.3) · Published Jan 21, 2026
Bug ID: CSCws02393
The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from