Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2009-2872

6.8 · MEDIUM

Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet…

Published Sep 28, 2009ciscoEPSS 2.31%

Overview

CVE-2009-2872 is a medium-severity vulnerability affecting cisco ios. It was published on September 28, 2009 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.

Remediation

Check the references section for vendor advisories and patches from cisco. Update ios to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refosvdb.org/58333Reftools.cisco.com/security/center/viewAlert.x?alertId=18893Refwww.cisco.com/en/US/products/products_applied_mitigation_bulletin09186a0080af8113.htmlRefwww.cisco.com/en/US/products/products_security_advisory09186a0080af8115.shtmlRefwww.cisco.com/web/about/security/intelligence/Cisco_ERP_sep09.htmlRefwww.securitytracker.com/id?1022930Refwww.vupen.com/english/advisories/2009/2759Refosvdb.org/58333Reftools.cisco.com/security/center/viewAlert.x?alertId=18893Refwww.cisco.com/en/US/products/products_applied_mitigation_bulletin09186a0080af8113.html

How CyberStrike helps

Frequently asked questions

What is CVE-2009-2872?

CVE-2009-2872 is a medium-severity vulnerability affecting cisco ios. It was published on September 28, 2009 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

How severe is CVE-2009-2872?

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2009-2872?

Check the references section for vendor advisories and patches from cisco. Update ios to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2009-2872?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-2872 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related MEDIUM CVEs from 2009

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999