CVE-2022-20633: A vulnerability in the web-based management interface of Cisco ECE could allow an unauthenticated, remote

Q: How do I fix CVE-2022-20633?

enterprise chat and email: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Q: Is CVE-2022-20633 being exploited?

CVE-2022-20633 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2022-20633 affect?

CVE-2022-20633 affects enterprise chat and email. Severity is medium (CVSS 5.3). 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 auth

Q: How urgent is CVE-2022-20633?

Priority 37/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEMITIGATE

CVE-2022-20633 is a medium-severity flaw (CVSS 5.3) affecting enterprise chat and email. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 succes

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.8% (top 45%)
CISA exploited list	No
Weakness	CWE-204
Published	2024-11-15
Last modified	2026-06-17

Publisher (CNA): Cisco Systems, Inc. · Vendor: cisco

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-11-15 17:15 UTCPublished CVE record published
2026-06-17 04:24 UTCUpdated Record last modified

cisco enterprise chat and email MITIGATE

Affected: < 12.6\(1\)es1

Fixed in: 12.6\(1\)es1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy enterprise-chat-and-email || rpm -q enterprise-chat-and-email || enterprise-chat-and-email --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2022-20633?

enterprise chat and email: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-20633 being exploited?

CVE-2022-20633 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2022-20633 affect?

CVE-2022-20633 affects enterprise chat and email. Severity is medium (CVSS 5.3). 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 auth

How urgent is CVE-2022-20633?

Priority 37/100. Remotely exploitable, no login, no user action

Software pages

Cisco vulnerabilities

Related CVEs

CVE-2025-20310 MEDIUM 6.1 MITIGATE A vulnerability in the web UI of Cisco Enterprise Chat and Email (ECE) could allow an unauthenticated, remote
CVE-2025-20139 HIGH 7.5 MITIGATE A vulnerability in chat messaging features of Cisco Enterprise Chat and Email (ECE) could allow an unauthentic
CVE-2024-20484 HIGH 7.5 MITIGATE A vulnerability in the External Agent Assignment Service (EAAS) feature of Cisco Enterprise Chat and Email (EC
CVE-2024-20367 MEDIUM 5.4 MITIGATE A vulnerability in the web UI of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote at
CVE-2022-20634 MEDIUM 4.7 MITIGATE A vulnerability in the web-based management interface of Cisco ECE could allow an unauthenticated, remote

References

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CVE-2022-20633: A vulnerability in the web-based management interface of Cisco&nbsp;ECE could allow an unauthenticated, remote