CVE-2010-4681: Cisco 5500 Series Adaptive Security Appliance

High severity, CVSS 7.5. EPSS: 2.3% chance of exploitation in the next 30 days.

Unspecified vulnerability on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software before 8.2(3) allows remote attackers to bypass SMTP inspection via vectors involving a prepended space character, aka Bug ID CSCte14901.

Affected products

• Cisco 5500 Series Adaptive Security Appliance
• Cisco Adaptive Security Appliance Software: up to and including 8.2\(2\); version 7.0 only; version 7.0(0) only; version 7.0(2) only; version 7.0(4) only; version 7.0(5) only; …
• Cisco ASA 5500

Published 2011-01-07. Last modified 2026-06-16.