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CVE-2009-2049

5.4 · MEDIUM

Cisco IOS 12.0(32)S12 through 12.0(32)S13 and 12.0(33)S3 through 12.0(33)S4, 12.0(32)SY8 through 12.0(32)SY9, 12.2(33)SXI1 through 12.2(33)SXI2, 12.2XNC before 12.2(33)XNC2, 12.2XND before 12.2(33)…

Published Jul 30, 2009ciscoCWE-16EPSS 2.44%

Overview

CVE-2009-2049 is a medium-severity vulnerability affecting cisco ios. It was published on July 30, 2009 and has a CVSS 2.0 base score of 5.4 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Cisco IOS 12.0(32)S12 through 12.0(32)S13 and 12.0(33)S3 through 12.0(33)S4, 12.0(32)SY8 through 12.0(32)SY9, 12.2(33)SXI1 through 12.2(33)SXI2, 12.2XNC before 12.2(33)XNC2, 12.2XND before 12.2(33)XND1, and 12.4(24)T1; and IOS XE 2.3 through 2.3.1t and 2.4 through 2.4.0; when RFC4893 BGP routing is enabled, allows remote attackers to cause a denial of service (device reload) by using an RFC4271 peer to send a malformed update, aka Bug ID CSCta33973.

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

Refsecunia.com/advisories/36046Refwww.cisco.com/en/US/products/products_security_advisory09186a0080aea4c9.shtmlRefwww.securityfocus.com/bid/35860Refwww.securitytracker.com/id?1022619Refwww.vupen.com/english/advisories/2009/2082Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6853Refsecunia.com/advisories/36046Refwww.cisco.com/en/US/products/products_security_advisory09186a0080aea4c9.shtmlRefwww.securityfocus.com/bid/35860Refwww.securitytracker.com/id?1022619

How CyberStrike helps

Frequently asked questions

What is CVE-2009-2049?

CVE-2009-2049 is a medium-severity vulnerability affecting cisco ios. It was published on July 30, 2009 and has a CVSS 2.0 base score of 5.4 (MEDIUM).

How severe is CVE-2009-2049?

This vulnerability has a CVSS 2.0 base score of 5.4, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-2049?

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-2009-2049?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-2049 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.

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