CVE-2009-20009
Belkin Bulldog Plus Web Service Buffer Overflow
- State
- Published
- Severity
- 9.3 Critical
- Published
- Aug 30, 2025
- Updated
- May 15, 2026
- Reserved
- Aug 28, 2025
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | 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 | VulnCheck |
Weaknesses
- CWE-121 Stack-based Buffer Overflow
Affected Products
| Product | Versions |
|---|---|
Bulldog Plus UPS Monitoring SoftwareBelkin International, Inc. |
|
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/belkin_bulldog.rbexploit
- https://www.exploit-db.com/exploits/8173exploit
- https://www.fortiguard.com/encyclopedia/ips/17325/belkin-bulldog-plus-web-services-buffer-overflowthird-party-advisory
- https://s3.belkin.com/support/dl/bulldogwindows.pdfproduct
- https://www.vulncheck.com/advisories/belkin-bulldog-plus-web-service-buffer-overflowthird-party-advisory
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.