medium5.9Known exploited
CVE-2009-2055
Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability
Exploited in the wild
This vulnerability is on a Known Exploited Vulnerabilities catalogue, added 2022-03-25. Federal due date: 2022-04-15.
Apply updates per vendor instructions.
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Ios Xr | Versions 3.4, 3.4.0, 3.4.1, 3.4.2, 3.4.3, 3.5 |
Weakness classification
References
- NVD record
- CVE.org record
- CISA KEV catalog
- http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html
- http://securitytracker.com/id?1022739
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml
- http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html
- http://securitytracker.com/id?1022739
- http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2009-2055