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CVE-2022-20798

CRITICAL · CVSS 9.8EPSS 1.5%EU EUVD

A vulnerability in the external authentication functionality of Cisco Secure Email and Web Manager, formerly known as Cisco Security Management Appliance (SMA), and Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass authentication and log in to the web management interface of an affected device. This vulnerability is due to improper authentication checks when an affected device uses Lightweight Directory Access Protocol (LDAP) for external authentication. An attacker could exploit this vulnerability by entering a specific input on the login page of the affected device. A successful exploit could allow the attacker to gain unauthorized access to the web-based management interface of the affected device.

Key facts

CVSS score
9.8 (v3.1)
Severity
CRITICAL
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE)
CWE-287
EPSS score
1.5% (74th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2022-26048)
Published
June 15, 2022
NVD last modified
June 17, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2022-26048 in the EU Vulnerability Database. Last updated in EUVD on November 1, 2024.

View on the EU Vulnerability Database

Affected products

  • cisco / email security appliance
  • cisco / email security appliance
  • cisco / secure email and web manager

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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CVE-2022-20798: CRITICAL severity (CVSS 9.8)