CVE-2009-20009
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.
Scoring
- Severity
- CRITICAL
- CVSS base score
- 9.3
- CVSS 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
- EPSS probability
- 62.60%
- CWE
- CWE-121
- Published
- 2025-08-30
- Last modified
- 2026-05-15
Affected products
- Belkin International, Inc. Bulldog Plus UPS Monitoring Software
- Belkin International, Inc. Bulldog Plus UPS Monitoring Software
Weakness type
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