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CVE-2026-20152

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CVE-2026-20152

Published: Apr 15, 2026

Modified: Apr 16, 2026

PUBLISHED

CVSS v3.1

5.3

MEDIUM

Description

A vulnerability in the authentication service feature of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass authentication policy requirements. This vulnerability is due to improper validation of user-supplied authentication input in HTTP requests. An attacker could exploit this vulnerability by sending HTTP requests that contain specific authentication requests to an affected device. A successful exploit could allow the attacker to bypass policy enforcement on the device. There is no direct impact to the Cisco Secure Web Appliance. However, as a result of exploiting this vulnerability, an attacker could send HTTP requests that should be restricted through the device.

VendorProductVersions

Cisco

Cisco Secure Web Appliance

affected
11.8.0-453
affected
12.5.3-002
affected
12.0.3-007
affected
12.0.3-005
affected
14.1.0-032

+54 more versions

Weaknesses (CWE)

CWE-305

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

References

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