TI-2022-05332 Aliases CVE-2022-20773 GHSA-wmwq-58jv-2qj3

Cisco Umbrella Virtual Appliance Static SSH Host Key Vulnerability

LOW 37CWE-321Published 2022-04-21 · Updated 2024-11-06

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: High
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-321.

Summary

A vulnerability in the key-based SSH authentication mechanism of Cisco Umbrella Virtual Appliance (VA) could allow an unauthenticated, remote attacker to impersonate a VA. This vulnerability is due to the presence of a static SSH host key. An attacker could exploit this vulnerability by performing a man-in-the-middle attack on an SSH connection to the Umbrella VA. A successful exploit could allow the attacker to learn the administrator credentials, change configurations, or reload the VA. Note: SSH is not enabled by default on the Umbrella VA.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.01182 67th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Cisco	Cisco Umbrella Insights Virtual Appliance	all versions	—	No fix listed	CNA

Cisco Umbrella Insights Virtual Appliance VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:cisco:umbrella_virtual_appliance::::::::	before 3.3.2	Vulnerable	Cisco

cpe:2.3:a:cisco:umbrella_virtual_appliance:*:*:*:*:*:*:*:* Versions before 3.3.2 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2022-20773
2026-10-03 Alias added: GHSA-wmwq-58jv-2qj3

References

Advisory 1

20220420 Cisco Umbrella Virtual Appliance Static SSH Host Key Vulnerability

TI-2017-09122 Hard-coded credentials in Cisco Umbrella Insights Virtual Appliance CVSS 3.0HIGH 8.2
TI-2022-05481 Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the… CVSS 3.1MEDIUM 6.5
TI-2026-16437 Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability CVSS 3.1MEDIUM 6.0
TI-2017-04435 The Cisco Umbrella Virtual Appliance Version 2.0.3 and prior contained an undocumented… CVSS 3.1MEDIUM 6.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences