Vulnerability Details : CVE-2009-2055

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.
Published 2009-08-19 17:30:01
Updated 2025-04-09 00:30:58
Source Cisco Systems, Inc.
View at NVD,   CVE.org
Vulnerability category: Denial of service

Products affected by CVE-2009-2055

CVE-2009-2055 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Cisco IOS XR Border Gateway Protocol (BGP) Denial-of-Service Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Cisco IOS XR,when BGP is the configured routing feature, allows remote attackers to cause a denial-of-service (DoS).
Notes:
https://nvd.nist.gov/vuln/detail/CVE-2009-2055
Added on 2022-03-25 Action due date 2022-04-15

Exploit prediction scoring system (EPSS) score for CVE-2009-2055

EPSS FAQ
1.24%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-2055

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.3
 MEDIUM AV:N/AC:M/Au:N/C:N/I:N/A:P
8.6
2.9
 NIST

CWE ids for CVE-2009-2055

  • The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2009-2055

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