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CVE-2009-2055

Known Exploited (CISA KEV)MEDIUM
5.9
CVSS Severity Score
EPSS Score39.6470%
EPSS Percentile94.27th
Published2009年8月19日
Last Modified2026年4月22日

Vulnerability 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 2009.

Affected Platforms (CPE)

💻
Cisco

Ios Xr

= 3.4
💻
Cisco

Ios Xr

= 3.4.0
💻
Cisco

Ios Xr

= 3.4.1
💻
Cisco

Ios Xr

= 3.4.2
💻
Cisco

Ios Xr

= 3.4.3
💻
Cisco

Ios Xr

= 3.5
💻
Cisco

Ios Xr

= 3.5.2
💻
Cisco

Ios Xr

= 3.5.3
💻
Cisco

Ios Xr

= 3.5.4
💻
Cisco

Ios Xr

= 3.6.0
💻
Cisco

Ios Xr

= 3.6.1
💻
Cisco

Ios Xr

= 3.6.2
💻
Cisco

Ios Xr

= 3.6.3
💻
Cisco

Ios Xr

= 3.7.0
💻
Cisco

Ios Xr

= 3.7.1
💻
Cisco

Ios Xr

= 3.7.2
💻
Cisco

Ios Xr

= 3.7.3
💻
Cisco

Ios Xr

= 3.8.0
💻
Cisco

Ios Xr

= 3.8.1

References & Advisories

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