CVE-2020-3447: Cisco Email Security Appliance and Cisco Content Security Management Appliance Information Disclosure Vulnerability

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-08-17 · updated 2026-06-17
Weakness: CWE-532

Description

A vulnerability in the CLI of Cisco AsyncOS for Cisco Email Security Appliance (ESA) and Cisco AsyncOS for Cisco Content Security Management Appliance (SMA) could allow an authenticated, remote attacker to access sensitive information on an affected device. The vulnerability is due to excessive verbosity in certain log subscriptions. An attacker could exploit this vulnerability by accessing specific log files on an affected device. A successful exploit could allow the attacker to obtain sensitive log data, which may include user credentials. To exploit this vulnerability, the attacker would need to have valid credentials at the operator level or higher on the affected device.

Affected products

Cisco Content Security Management Appliance (SMA): before 13.6.1-201 — fixed in 13.6.1-201
Cisco Email Security Appliance (ESA): before 13.5.1 — fixed in 13.5.1

How to fix

Upgrade to a fixed version: Cisco Content Security Management Appliance (SMA) 13.6.1-201; Cisco Email Security Appliance (ESA) 13.5.1. Check the vendor advisory for mitigations.

References

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