Description
Buffer overflow in HHOpen ActiveX control (hhopen.ocx) 1.0.0.1 for Internet Explorer 4.01 and 5 allows remote attackers to execute arbitrary commands via long arguments to the OpenHelp method.
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Shane Hird · textremotewindows
https://www.exploit-db.com/exploits/19521
References (4)
Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/3314
US Government Resource third-party-advisory
x_refsource_cert-vn
http://www.kb.cert.org/vuls/id/29795
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/669
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://www.securityfocus.com/archive/1/28719
Scores
EPSS
0.3494
EPSS Percentile
97.0%
Details
Status
published
Products (2)
microsoft/internet_explorer
4.0.1
microsoft/internet_explorer
5.0
Published
Oct 31, 1999
Tracked Since
Feb 18, 2026