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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2009-20009 Detail

  Unsupported When Assigned   

Description

Belkin Bulldog Plus version 4.0.2 build 1219 contains a stack-based buffer overflow vulnerability in its web service authentication handler. When a specially crafted HTTP request is sent with an oversized Authorization header, the application fails to properly validate the input length before copying it into a fixed-size buffer, resulting in memory corruption and potential remote code execution. Exploitation requires network access and does not require prior authentication.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulnCheck
CVSS-B 9.3 CRITICAL
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/belkin_bulldog.rb VulnCheck
https://s3.belkin.com/support/dl/bulldogwindows.pdf VulnCheck
https://www.exploit-db.com/exploits/8173 VulnCheck
https://www.fortiguard.com/encyclopedia/ips/17325/belkin-bulldog-plus-web-services-buffer-overflow VulnCheck
https://www.vulncheck.com/advisories/belkin-bulldog-plus-web-service-buffer-overflow VulnCheck

Weakness Enumeration

CWE-ID CWE Name Source
CWE-121 Stack-based Buffer Overflow VulnCheck  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2009-20009
NVD Published Date:
08/30/2025
NVD Last Modified:
09/02/2025
Source:
VulnCheck