CVE-2026-20056— Cisco Secure Web Appliance TBD Bypass Vulnerability

Cisco Secure Web Appliance TBD Bypass Vulnerability

A vulnerability in the Dynamic Vectoring and Streaming (DVS) Engine implementation of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass the anti-malware scanner, allowing malicious archive files to be downloaded. This vulnerability is due to improper handling of certain archive files. An attacker could exploit this vulnerability by sending a crafted archive file, which should be blocked, through an affected device. A successful exploit could allow the attacker to bypass the anti-malware scanner and download malware onto an end user workstation. The downloaded malware will not automatically execute unless the end user extracts and launches the malicious file. 

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

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Cisco Secure Web Appliance 安全漏洞

Cisco Secure Web Appliance是美国思科（Cisco）公司的一个应用程序。用于保护网站。 Cisco Secure Web Appliance存在安全漏洞，该漏洞源于动态矢量和流引擎对某些归档文件处理不当，可能导致绕过反恶意软件扫描器。

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