Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
3DescriptionCVE.org
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.
AnalysisAI
Authentication policy bypass in Cisco Secure Web Appliance (AsyncOS) allows unauthenticated, remote attackers to send restricted HTTP requests through the appliance by exploiting improper validation of authentication input. The vulnerability (CWE-305) carries a CVSS 3.1 score of 5.3 and low EPSS likelihood (0.07%), with no active exploitation reported. Successful exploitation bypasses policy enforcement but does not directly compromise the appliance, resulting only in low integrity impact.
Same weakness CWE-305 – Authentication Bypass by Primary Weakness
View allSame technique Authentication Bypass
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-22964
GHSA-v3r6-6788-v9xh