CVE-2003-0647
Buffer overflow in the HTTP server for Cisco IOS 12.2 and earlier allows remote attackers to...
Buffer overflow in the HTTP server for Cisco IOS 12.2 and earlier allows remote attackers to execute arbitrary code via an extremely long (2GB) HTTP GET request.
Exploit likelihood
What each source reports
NVD Score used
Buffer overflow in the HTTP server for Cisco IOS 12.2 and earlier allows remote attackers to execute arbitrary code via an extremely long (2GB) HTTP GET request.
- Record
CVE-2003-0647- CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Updated
- 2026-11-02
CVE List No score
Buffer overflow in the HTTP server for Cisco IOS 12.2 and earlier allows remote attackers to execute arbitrary code via an extremely long (2GB) HTTP GET request.
- Record
CVE-2003-0647- Updated
- 2026-11-02
EUVDEUVD-2003-0641 No score
Buffer overflow in the HTTP server for Cisco IOS 12.2 and earlier allows remote attackers to execute arbitrary code via an extremely long (2GB) HTTP GET request.
- Record
EUVD-2003-0641- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3ppp-h4gc-mww4 No score
Buffer overflow in the HTTP server for Cisco IOS 12.2 and earlier allows remote attackers to...
Buffer overflow in the HTTP server for Cisco IOS 12.2 and earlier allows remote attackers to execute arbitrary code via an extremely long (2GB) HTTP GET request.
- Record
GHSA-3ppp-h4gc-mww4- Updated
- 2026-11-02
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Exploit-DB | Cisco IOS 12.x/11.x - HTTP Remote Integer Overflow | 2003-08-10 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, Exploit-DB, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2003-0647 is a high vulnerability (CVSS 7.5) in Cisco Ios, published August 5, 2003. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 5.93%, the 93rd percentile. No source names a fixed version.