CVE-2009-2055

MEDIUMCISA KEV

5.9

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.

CVE Details

CVSS v3.1 Score5.9

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published8/19/2009

Last Modified4/22/2026

Sourcekev

Honeypot Sightings0

CISA KEV

VendorCisco

ProductIOS XR

Vulnerability NameCisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability

KEV Date Added2022-03-25

Remediation Due Date2022-04-15

Ransomware UseUnknown

Affected Products

cisco:ios_xr

Weaknesses (CWE)

CWE-20CWE-20

References

http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html(psirt@cisco.com)

http://securitytracker.com/id?1022739(psirt@cisco.com)

http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml(psirt@cisco.com)

http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html(af854a3a-2127-422b-91ae-364da2661108)

http://securitytracker.com/id?1022739(af854a3a-2127-422b-91ae-364da2661108)

http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-2055(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.