CVE Database · CVE-2009-2055
CVSS v3.1
5.9
EPSS
3.33%
Published
Aug 19, 2009
Modified
Apr 22, 2026
CISA Known Exploited Vulnerability
Added: 2022-03-25 · Due: 2022-04-15
Apply updates per vendor instructions.
Public PoC / Exploit (1)
All weaponized →Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.
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:HWeaknesses (CWE)
Affected Products (19)
References (7)