VULNERABILITY INTELLIGENCE

CVE-2020-26082

CVSS score5.8 MEDIUM
EPSS probability0.63%
CISA KEVNot currently listed
Published2023-08-04
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

Description

A vulnerability in the zip decompression engine of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass content filters that are configured on an affected device. The vulnerability is due to improper handling of password-protected zip files. An attacker could exploit this vulnerability by sending a malicious file inside a crafted zip-compressed file to an affected device. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.

Weakness classification

  • CWE-20: Improper Input Validation

Primary references