CVE-2026-20080CWE-400

Cisco IEC6400 Edge Compute Appliance SSH Denial of Service Vulnerability

Medium · published January 21, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
30.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00380 · 30.7th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-01-21T16:26Z
EPSS history
Timeline
  • 21 JAN 16:26Z
    Cisco IEC6400 Edge Compute Appliance SSH Denial of Service Vulnerability
    cvelistv5