CVE-2001-0724

medium

Description

Internet Explorer 5.5 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 variant" of CVE-2001-0664.

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/8471

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-055

http://www.osvdb.org/5556

Details

Source: Mitre, NVD

Published: 2001-11-14

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 4.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Severity: Medium

EPSS

EPSS: 0.02984