A vulnerability in the web management interface of Cisco Secure Email and Web Manager, formerly Cisco Security Management Appliance (SMA), and Cisco Email Security Appliance (ESA) could allow an authenticated, remote attacker to retrieve sensitive information from a Lightweight Directory Access Protocol (LDAP) external authentication server connected to an affected device. This vulnerability is due to a lack of proper input sanitization while querying the external authentication server. An attacker could exploit this vulnerability by sending a crafted query through an external authentication web page. A successful exploit could allow the attacker to gain access to sensitive information, including user credentials from the external authentication server. To exploit this vulnerability, an attacker would need valid operator-level (or higher) credentials.
Conclusion & alert: CVE-2022-20664 is rated Moderate Risk (51.2/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.95%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.37% | 0.95% | +0.58% |
| 2 | 2025-11-21 | 0.21% | 0.37% | +0.17% |
| 3 | 2025-11-18 | — | 0.21% | — |
Full EPSS history (10 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.7 | 3.1 | HIGH |
|
3.1 | 4.0 | [email protected] |
| 7.7 | 3.1 | HIGH |
|
3.1 | 4.0 | [email protected] |
| 3.5 | 2.0 | LOW |
|
6.8 | 2.9 | [email protected] |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| cisco | email_security_appliance | < 14.0.2-020 | cpe:2.3:a:cisco:email_security_appliance:*:*:*:*:*:*:*:* |
| cisco | secure_email_and_web_manager | < 13.6.2-090 | cpe:2.3:a:cisco:secure_email_and_web_manager:*:*:*:*:*:*:*:* |
| cisco | secure_email_and_web_manager | >= 14.1, < 14.1.0-227 | cpe:2.3:a:cisco:secure_email_and_web_manager:*:*:*:*:*:*:*:* |