CVE-2009-20009 - CVE House
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Status published Critical CVE-2009-20009

Belkin Bulldog Plus Web Service Buffer Overflow

Vulnerability 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Elazar

Affected Vendor

Belkin International, Inc.

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Affected Software

Bulldog Plus UPS Monitoring Software
Vulnerable Versions:
0

Timeline

Official Publish: August 30th, 2025
Last Modified: May 15th, 2026
Added to House: July 19th, 2026

CVSS Vectors

Weaknesses (CWE)