CVE-2020-3546

Cisco Email Security Appliance Information Disclosure Vulnerability

MEDIUM
5.3
CVSS Score
Published: September 4, 2020 at 02:25 AM UTC
Updated: June 17, 2026 at 03:18 AM UTC
2 products affected across 1 vendorAsyncosEmail Security Appliance

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Severity
MEDIUM5.3
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

A vulnerability in the web-based management interface of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to access sensitive information on an affected device. The vulnerability is due to insufficient validation of requests that are sent to the web-based management interface. An attacker could exploit this vulnerability by sending a crafted request to the interface of an affected device. A successful exploit could allow the attacker to obtain the IP addresses that are configured on the internal interfaces of the affected device. There is a workaround that addresses this vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 13.5.1
cisco-email-security-appliance (environment)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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