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CVE-2023-20057

LOW CVSS: N/A Published: 2023-01-20 Modified: 2026-06-17

Description

A vulnerability in the URL filtering mechanism of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for an affected device, which could allow malicious URLs to pass through the device.

Affected Platforms

Cisco Email Security Appliance C670Cisco Email Security Appliance X1070Cisco Email Security Appliance C380Cisco Email Security Appliance C690Cisco Email Security Appliance C370Cisco Email Security Appliance C690XCisco Email Security Appliance C160Cisco AsyncosCisco Email Security Appliance C370DCisco Email Security Appliance C390

Weakness Type

CWE-792, CWE-74

References