Is CVE-2026-20152 actively exploited?

No active exploitation of CVE-2026-20152 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-20152 be exploited remotely?

Yes. CVE-2026-20152 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-20152?

CVE-2026-20152 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-20152

CWE-305Published: April 15, 2026· Updated: Apr 17, 2026

5.3

CVSS v3.1

EPSS:0.07%probability of exploitation in 30 daysPercentile:21.6th

Official 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.

NVD Source

Technical Analysis

CVE-2026-20152 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.