CVE-2010-2821: Cisco Firewall Services Module

High severity, CVSS 7.1. EPSS: 1.1% chance of exploitation in the next 30 days.

Unspecified vulnerability on the Cisco Firewall Services Module (FWSM) with software 3.2 before 3.2(17.2), 4.0 before 4.0(11.1), and 4.1 before 4.1(1.2) for Catalyst 6500 series switches and 7600 series routers, when multi-mode is enabled, allows remote attackers to cause a denial of service (device reload) via crafted (1) Telnet, (2) SSH, or (3) ASDM traffic over TCP, aka Bug ID CSCtg68694.

Affected products

• Cisco Firewall Services Module
• Cisco Firewall Services Module Software: version 3.2 only; version 3.2(1) only; version 3.2(2) only; version 3.2(3) only; version 3.2(13) only; version 3.2(14) only; …

Published 2010-08-09. Last modified 2026-06-16.