CVE-2001-0664
HighSummary
Internet Explorer 5.5 and 5.01 allows remote attackers to bypass security restrictions via malformed URLs that contain dotless IP addresses, causing Internet Explorer to process the page in the Intranet Zone, which may have fewer security restrictions.
Risk Assessment
Organizations may be exposed to attacks that exploit this vulnerability to gain access to internal resources with reduced security. This could lead to data leaks or other security threats.
Recommendation
It is recommended to update Internet Explorer to the latest version or use alternative browsers that are not vulnerable to this issue. Additionally, implementing security policies regarding the use of outdated software is advisable.
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Original NVD description (English source)
Internet Explorer 5.5 and 5.01 allows remote attackers to bypass security restrictions via malformed URLs that contain dotless IP addresses, which causes Internet Explorer to process the page in the Intranet Zone, which may have fewer security restrictions, aka the "Zone Spoofing vulnerability."
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

