CVE-2002-1973 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 40% (pctl 99)
Patch early
A public exploit exists.
Description
Buffer overflow in CHttpServer::OnParseError in the ISAPI extension (Isapi.cpp) when built using Microsoft Foundation Class (MFC) static libraries in Visual C++ 5.0, and 6.0 before SP3, as used in multiple products including BadBlue, allows remote attackers to cause a denial of service (access violation and crash) and possibly execute arbitrary code via a long query string that causes a parsing error.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 40.05% — more likely to be exploited than 99% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2002-12-31 |
| Last modified | 2026-06-16 |
Affected (2)
| Vendor | Product |
|---|---|
| microsoft | foundation class library |
| working resources inc. | badblue |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Foundation Class Library 7.0 - ISAPI Buffer Overflow | 2002-07-08 |
References
- http://archives.neohapsis.com/archives/bugtraq/2002-07/0082.html
- http://archives.neohapsis.com/archives/bugtraq/2002-07/0135.html
- http://archives.neohapsis.com/archives/bugtraq/2002-07/0144.html
- http://archives.neohapsis.com/archives/bugtraq/2002-07/0145.html
- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3B216562
- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3B310649
- http://www.securityfocus.com/bid/5188
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9529
- http://archives.neohapsis.com/archives/bugtraq/2002-07/0082.html
- http://archives.neohapsis.com/archives/bugtraq/2002-07/0135.html
- http://archives.neohapsis.com/archives/bugtraq/2002-07/0144.html
- http://archives.neohapsis.com/archives/bugtraq/2002-07/0145.html
- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3B216562
- http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3B310649
- http://www.securityfocus.com/bid/5188
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9529
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