Vulnerability in Microsoft Internet Explorer
CVE-1999-1087
Internet Explorer 4 treats a 32-bit number ("dotless IP address") in the a URL as the hostname instead of an IP address, which causes IE to apply Local Intranet Zone settings to the resulting web page, allowing remote malicious web servers to conduct unauthorized activities by using URLs that contain the dotless IP address for their server.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.064 (93.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.063 · newest: 0.064 · change: +0.001
Affected products
- Microsoft Internet Explorer — versions 4.0, 4.0.1
References
- www.microsoft.com/Windows/Ie/security/dotless.asp
- www.osvdb.org/7828 (vdb-entry)
- docs.microsoft.com/en-us/security-updates/securitybulletins/1998/ms98-016 (vendor-advisory)
- support.microsoft.com/support/kb/articles/q168/6/17.asp (vendor-advisory, Patch, Vendor Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/2209 (vdb-entry)