Is CVE-2009-0638 being actively exploited?

CVE-2009-0638 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-0638?

CVE-2009-0638 has a CVSS 2.0 base score of 7.8 (HIGH).

CVE-2009-0638

HIGH · CVSS 7.8EPSS 2.9%EU EUVD

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.

Key facts

CVSS score: 7.8 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:C
EPSS score: 2.9% (87th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-0641)
Published: August 21, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-0641 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

cisco / catalyst 6500
cisco / catalyst 7600
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module
cisco / firewall services module

References

http://secunia.com/advisories/36373(Vendor Advisory)
http://securitytracker.com/id?1022747
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af0d1d.shtml(Patch, Vendor 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

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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