cisco-sa-wsa-archive-bypass-Scx2e8zF

csafUScisco_csaf

Cisco Secure Web Appliance Real-Time Scanning Archive File Bypass Vulnerability

view advisory published 2026-02-04

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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-20056US—OT elevated—
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 a…
02

references

External citations — patches, advisories, analysis.

03

remediations (57)

scry

Advisories like this name the exposed products attackers go after on your perimeter. See what is exposed on your perimeter with a free passive scan.

Free scan