Zip Decompression Vulnerability in Cisco Email Security Appliance

CVE-2020-26082

Summary

A vulnerability in the zip decompression engine of Cisco AsyncOS Software for Cisco Email Security Appliance allows attackers to bypass email content filters. This issue arises from improper handling of password-protected zip files. By sending a malicious file in a specially crafted zip-compressed package, an unauthenticated, remote attacker can exploit this flaw, enabling them to evade security measures that would typically block harmful emails.

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