CVE-2002-0823 describes a buffer overflow in Winhlp32.exe affecting Microsoft Windows 2000 and Windows Help. This vulnerability allows remote attackers to execute arbitrary code by supplying a long pathname to the HTML Help ActiveX control (HHCtrl.ocx) within an HTML document. With a CVSS score of 7.5, it is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog, public exploit code exists (EDB-21485) and it has garnered significant community discussion, though it is not currently flagged as actively exploited.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:a:microsoft:windows_help:*:*:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:* | ||
All Versions ImpactedCPE matchmatch criteria | cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.