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Vulnerability record · CVE-1999-0347 · published 26 January 1999

CVE-1999-0347: Internet Explorer 4.01 allows remote attackers to read local files and spoof web pages via a "%01" character i…

Internet Explorer 4.01 allows remote attackers to read local files and spoof web pages via a "%01" character in an "about:" Javascript URL, which causes Internet Explorer to use the domain specified after the character.

10.0 CVSS 2.0 High EPSS 7.5% · top 5.7%
10.0CVSS 2.0 base score
7.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

Internet Explorer 4.01 allows remote attackers to read local files and spoof web pages via a "%01" character in an "about:" Javascript URL, which causes Internet Explorer to use the domain specified after the character.

AV:N/AC:L/Au:N/C:C/I:C/A:C

References

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Source: NIST National Vulnerability Database (record CVE-1999-0347), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.