Vulnerability Monitor

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CVE-2009-2056

Cisco IOS XR 3.8.1 and earlier allows remote authenticated users to cause a denial of service (process crash) via vectors involving a BGP UPDATE message with many AS numbers prepended to the AS path.

Published

2009-08-21T17:30:00.297

Last Modified

2025-04-09T00:30:58.490

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 3.3 (LOW)

CVSSv2 Vector

AV:N/AC:L/Au:M/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: MULTIPLE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

6.4

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-264
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System cisco ios_xr ≤ 3.8.1 Yes
Operating System cisco ios_xr 3.0 Yes
Operating System cisco ios_xr 3.0.1 Yes
Operating System cisco ios_xr 3.1 Yes
Operating System cisco ios_xr 3.1.0 Yes
Operating System cisco ios_xr 3.2 Yes
Operating System cisco ios_xr 3.2.1 Yes
Operating System cisco ios_xr 3.2.2 Yes
Operating System cisco ios_xr 3.2.3 Yes
Operating System cisco ios_xr 3.2.3 Yes
Operating System cisco ios_xr 3.2.4 Yes
Operating System cisco ios_xr 3.2.50 Yes
Operating System cisco ios_xr 3.3 Yes
Operating System cisco ios_xr 3.4 Yes
Operating System cisco ios_xr 3.4.0 Yes
Operating System cisco ios_xr 3.4.1 Yes
Operating System cisco ios_xr 3.4.2 Yes
Operating System cisco ios_xr 3.4.3 Yes
Operating System cisco ios_xr 3.5 Yes
Operating System cisco ios_xr 3.5.2 Yes
Operating System cisco ios_xr 3.5.3 Yes
Operating System cisco ios_xr 3.5.4 Yes
Operating System cisco ios_xr 3.6 Yes
Operating System cisco ios_xr 3.6.0 Yes
Operating System cisco ios_xr 3.6.1 Yes
Operating System cisco ios_xr 3.6.2 Yes
Operating System cisco ios_xr 3.6.3 Yes
Operating System cisco ios_xr 3.7 Yes
Operating System cisco ios_xr 3.7.0 Yes
Operating System cisco ios_xr 3.7.1 Yes
Operating System cisco ios_xr 3.7.2 Yes
Operating System cisco ios_xr 3.7.3 Yes
Operating System cisco ios_xr 3.8.0 Yes
References