ZDF
Sign inSign up

Vulnerabilities

Vulnerability · CVE-2026-20080

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 respond

Published Jan 21, 2026 · catalog updated Jan 21, 2026 · Cisco Cisco Ultra-Reliable Wireless Backhaul

Last checked Nov 8, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-20080. EPSS is 0.38%. Act only if a listed version of Cisco Cisco Ultra-Reliable Wireless Backhaul is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.38%
Remediation
Advisory link
Affected products
vendor Cisco Cisco Ultra-Reliable Wireless Backhaul 1.0.0

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Cisco Cisco Ultra-Reliable Wireless Backhaul 1.0.01.0.0

How to fix CVE-2026-20080

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-20080. EPSS is 0.38%. Act only if a listed version of Cisco Cisco Ultra-Reliable Wireless Backhaul is installed.

Which versions are affected?

Compare what you have installed with Cisco Cisco Ultra-Reliable Wireless Backhaul 1.0.0 1.0.0. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.38%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Cisco security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 21, 2026 · EUVD

    Detected

    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 expl

  2. Jan 21, 2026 · EUVD

    Updated

    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 expl

Sources

  • CVE.orgVulnerability recordCVE-2026-20080

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-20080

    30-day exploitation probability 0.38%

    first.org
  • EUVDVulnerability recordEUVD-2026-3662

    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

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Nov 8, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 8, 2026
  • CVE.orgNov 4, 2026
  • EUVDNov 4, 2026