CVE-2022-20633 - CVE House
Back to Database
Status published Medium CVE-2022-20633

Cisco Enterprise Chat and Email Username Enumeration Vulnerability

Vulnerability Description

A vulnerability in the web-based management interface of Cisco ECE could allow an unauthenticated, remote attacker to perform a username enumeration attack against an affected device. This vulnerability is due to differences in authentication responses that are sent back from the application as part of an authentication attempt. An attacker could exploit this vulnerability by sending authentication requests to an affected device. A successful exploit could allow the attacker to confirm existing user accounts, which could be used in further attacks. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2022-20633

Credits & Attribution

No credits recorded in the NVD database.

References

More from Cisco

View All →
CVE-2025-20393
Cisco Secure Email Gateway and Cisco Secure Email and Web Manager Remote Command Execution Vulnerability
Critical 10
CVE-2025-20377
Cisco Unified Intelligence Center API Information Disclosure Vulnerability
Medium 4.3
CVE-2025-20376
Cisco Unified Contact Center Express Remote Code Execution Vulnerability
Medium 6.5
CVE-2025-20375
Cisco Unified Contact Center Express Arbitrary File Upload Vulnerability
Medium 6.5
CVE-2025-20374
Cisco Unified Contact Center Express Arbitrary File Download Vulnerability
Medium 4.9

Affected Vendor

Affected Software

Cisco Enterprise Chat and Email
Vulnerable Versions:
11.6(1)_ES3, 11.6(1)_ES4, 12.0(1)_ES6, 11.6(1)_ES8, 12.0(1)_ES5a, 11.6(1)_ES9, 12.0(1)_ES6_ET1, 11.6(1)_ES6, 11.6(1)_ES5, 12.5(1)_ET1, 12.5(1), 12.5(1)_ES3_ET1, 12.0(1)_ES3, 11.6(1)_ES11, 12.0(1)_ES4, 12.0(1)_ES5, 11.6(1)_ES2, 11.6(1)_ES9a, 11.6(1)_ES10, 12.0(1)_ES1, 12.0(1), 12.5(1)_ES3, 12.6(1), 11.5(1), 12.0(1)_ES2, 11.6(1)_ES7, 12.5(1)_ES2, 12.6(1)_ET1, 11.6(1), 12.5(1)_ES1

Timeline

Official Publish: November 15th, 2024
Last Modified: November 15th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weaknesses (CWE)

CWE-204

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.