CVE-2002-0823 Memory corruption in n/a

What is CVE-2002-0823?

CVE-2002-0823 is a high-severity memory corruption vulnerability in Microsoft Windows 2000, published on 2 Apr 2003. 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 Winhlp32.exe allows remote attackers to execute arbitrary code via an HTML document that calls the HTML Help ActiveX control (HHCtrl.ocx) with a long pathname in the Item parameter.

Which versions are affected by CVE-2002-0823?

It affects 2 products.

Products include Microsoft Windows 2000, Microsoft Windows Help.

How do I fix CVE-2002-0823?

No fix has been published for CVE-2002-0823 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-2002-0823 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2002-0823 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-44hf-w7h9-vw7g.