CVE-2009-2055

CVSS 2.0 Score 4.3 of 10 (medium)

Details

Published Aug 19, 2009
Updated: Jan 6, 2025
CWE ID 20

Summary

CVE-2009-2055 is a denial-of-service vulnerability affecting Cisco IOS XR 3.4.0 through 3.8.1. An attacker can exploit this issue by sending a malformed BGP UPDATE message with an invalid attribute, leading to a session reset and service disruption. The vulnerability was demonstrated in real-world attacks on August 17, 2009. Network administrators are advised to upgrade their software to a patched version to mitigate this risk.

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Affected Products

  • Cisco IOS

Affected Vendors

  • Cisco Systems Inc

Advisories, Assessments, and Mitigations