CVE-2002-0693 Memory corruption in n/a

What is CVE-2002-0693?

CVE-2002-0693 is a high-severity memory corruption vulnerability in Microsoft Windows 2000, published on 5 Oct 2002. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Buffer overflow in the HTML Help ActiveX Control (hhctrl.ocx) in Microsoft Windows 98, 98 Second Edition, Millennium Edition, NT 4.0, NT 4.0 Terminal Server Edition, Windows 2000, and Windows XP allows remote attackers to execute code via (1) a long parameter to the Alink function, or (2) script containing a long argument to the showHelp function.

Which versions are affected by CVE-2002-0693?

It affects 7 products.

Products include Microsoft Windows 2000, Microsoft Windows 2000 Terminal Services, Microsoft Windows 98, Microsoft Windows 98se, Microsoft Windows Me, Microsoft Windows Nt and 1 more.

How do I fix CVE-2002-0693?

No fix has been published for CVE-2002-0693 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2002-0693 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2002-0693 exists.

Public exploit code: 1 Exploit-DB entry.

Other vulnerabilities in Microsoft Windows 2000

• CVE-2008-4250 Microsoft Windows Buffer Overflow Exploited Critical 9.8
• CVE-2010-0232 Microsoft Windows Kernel Exception Handler Exploited High 7.8
• CVE-2009-1123 Microsoft Windows Improper Input Validation Exploited High 7.8
• CVE-2002-0367 Microsoft Windows Privilege Escalation Exploited High 7.8
• CVE-2010-0269 Memory corruption in n/a Critical 10.0

All Microsoft Windows 2000 vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-vc6x-jx7x-qrfq.