{"cve":{"cve_id":"CVE-2009-2055","is_kev":true,"kev_date_added":"2022-03-25","kev_vendor_project":"Cisco","kev_product":"IOS XR","kev_vulnerability_name":"Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability","kev_short_description":"Cisco IOS XR,when BGP is the configured routing feature, allows remote attackers to cause a denial-of-service (DoS).","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-04-15","kev_known_ransomware":false,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2009-2055","kev_cwes":["CWE-20"],"epss_score":0.03326,"epss_percentile":0.87023,"epss_as_of":"2026-06-23","description":"Cisco IOS XR 3.4.0 through 3.8.1 allows remote attackers to cause a denial of service (session reset) via a BGP UPDATE message with an invalid attribute, as demonstrated in the wild on 17 August 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