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Vulnerability record · CVE-2009-0638 · published 21 August 2009

CVE-2009-0638: Cisco firewall services module vulnerability

Cisco · Firewall Services Module

The Cisco Firewall Services Module (FWSM) 2.x, 3.1 before 3.1(16), 3.2 before 3.2(13), and 4.0 before 4.0(6) for Cisco Catalyst 6500 switches and Cisco 7600 routers allows remote attackers to cause a denial of service (traffic-handling outage) via a series of malformed ICMP messages.

7.8 CVSS 2.0 High EPSS 2.9% · top 13.8%
7.8CVSS 2.0 base score
2.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

The Cisco Firewall Services Module (FWSM) 2.x, 3.1 before 3.1(16), 3.2 before 3.2(13), and 4.0 before 4.0(6) for Cisco Catalyst 6500 switches and Cisco 7600 routers allows remote attackers to cause a denial of service (traffic-handling outage) via a series of malformed ICMP messages.

AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://secunia.com/advisories/36373 Vendor Advisory
http://securitytracker.com/id?1022747
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af0d1d.shtml PatchVendor Advisory
http://www.securityfocus.com/bid/36085 Patch
http://www.vupen.com/english/advisories/2009/2329 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/52591
http://secunia.com/advisories/36373 Vendor Advisory
http://securitytracker.com/id?1022747
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af0d1d.shtml PatchVendor Advisory
http://www.securityfocus.com/bid/36085 Patch
http://www.vupen.com/english/advisories/2009/2329 Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/52591

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.0CVE-2007-0968Cisco firewall services module vulnerabilityUnspecified vulnerability in Cisco Firewall Services Module (FWSM) before 2.3(4.7) and 3.x before 3.1(3.1) causes the access control entries (ACE) in…EPSS 2.1%7.8CVE-2012-0356Cisco firewall services module software improper input validation vulnerabilityCisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with softwar…EPSS 2.1%7.8CVE-2011-0394Cisco adaptive security appliance vulnerabilityCisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.11), 7.1 and 7.2 before 7.2(5.1), 8.0 before 8.0(5.19), 8…EPSS 3.4%7.8CVE-2010-2818Cisco firewall services module software vulnerabilityUnspecified vulnerability in the SunRPC inspection feature on the Cisco Firewall Services Module (FWSM) with software 3.1 before 3.1(17.2), 3.2 befor…EPSS 1.2%7.8CVE-2010-2819Cisco firewall services module software improper input validation vulnerabilityUnspecified vulnerability in the SunRPC inspection feature on the Cisco Firewall Services Module (FWSM) with software 3.1 before 3.1(17.2), 3.2 befor…EPSS 1.2%7.8CVE-2010-2820Cisco firewall services module software vulnerabilityUnspecified vulnerability in the SunRPC inspection feature on the Cisco Firewall Services Module (FWSM) with software 3.1 before 3.1(17.2), 3.2 befor…EPSS 1.2%7.8CVE-2010-0151Cisco firewall services module vulnerabilityThe Cisco Firewall Services Module (FWSM) 4.0 before 4.0(8), as used in for the Cisco Catalyst 6500 switches, Cisco 7600 routers, and ASA 5500 Adapti…EPSS 2.0%7.8CVE-2007-5584Cisco firewall services module vulnerabilityUnspecified vulnerability in Cisco Firewall Services Module (FWSM) 3.2(3) allows remote attackers to cause a denial of service (device reload) via cr…EPSS 2.0%

Source: NIST National Vulnerability Database (record CVE-2009-0638), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.