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CVE-2009-2055: Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability
Cisco IOS XR · in CISA KEV since 2022-03-25
2022-03-25added to KEV
2022-04-15federal remediation due date
3.31%EPSS exploit probability (30 days) 88.0th percentile
5.9 MEDIUMCVSS 3.1
Unknownknown ransomware use
4,601days from NVD publication to KEV
What it is
Cisco IOS XR,when BGP is the configured routing feature, allows remote attackers to cause a denial-of-service (DoS).
Required action (CISA)
Apply updates per vendor instructions.
| CWE | CWE-20 |
|---|---|
| CVSS vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD published | 2009-08-19 (Analyzed) |
Original records: NVD · CISA KEV · JSON: /api/cve/CVE-2009-2055.json · all KEV CVEs
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Get the full file: Exploited Vulnerabilities Brief – September 2026 ($29): this month's KEV additions ranked by EPSS, ransomware use and due date, ready to hand to a patch team. Checkout by Polar.