Medium severity · published Aug 19, 2009
CVE-2009-2055
Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability
In wildKEV
5.9
CVSS
3.3%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 89% of CVEs
Exploited in the wildYes
CISA KEVListed Mar 25, 2022
Federal remediation dueApr 15, 2022
Ransomware campaign useNot known
Affected products
Which versions
IX
Ios XR · Cisco
3.4; 3.4.0; 3.4.1; 3.4.2; 3.4.3; 3.5; +13 more · source: NVD, KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2009-2055
CVE.org
https://www.cve.org/CVERecord?id=CVE-2009-2055
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
mailing-list
http://mailman.nanog.org/pipermail/nanog/2009-August/012719.html
vdb-entry
http://securitytracker.com/id?1022739
vendor-advisory
http://www.cisco.com/en/US/products/products_security_advisory09186a0080af150f.shtml
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