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VULNERABILITIES

CVE-2009-2055 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:5.9 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-2055 CISA-ADPUS Government Resource
http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html CVEMailing List
http://securitytracker.com/id?1022739 CVEBroken Link
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml CVEPatchVendor Advisory
http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html [email protected]Mailing List

see all 7 references

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Reference CISA's BOD 22-01 and Known Exploited Vulnerabilities Catalog for further guidance and requirements.

Vulnerability NameDate AddedDue DateRequired Action
Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service VulnerabilityMar 25, 2022Apr 15, 2022Apply updates per vendor instructions.

Weakness Enumeration

CWE-IDCWE NameSource
CWE-20Improper Input Validation[email protected]
CWE-20Improper Input ValidationCISA-ADP

Affected Products

ProductVersions
cisco ios xr
3.4
3.4.0
3.4.1
3.4.2
3.4.3

CPE

  • cpe:2.3:o:cisco:ios_xr:3.4:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.4.0:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.4.1:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.4.2:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.4.3:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.5:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.5.2:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.5.3:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.5.4:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.6.0:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.6.1:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.6.2:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.6.3:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.7.0:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.7.1:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.7.2:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.7.3:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:cisco:ios_xr:3.8.1:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

11 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2009-2055
NVD Published Date:
Aug 19, 2009
NVD Last Modified:
Jun 16, 2026
Source:
[email protected]
CVE-2009-2055 Details - Not Deferred