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Vulnerability record · CVE-1999-0877 · published 1 October 1999

CVE-1999-0877: Microsoft internet explorer information exposure vulnerability

Microsoft · Internet Explorer

Internet Explorer 5 allows remote attackers to read files via an ExecCommand method called on an IFRAME.

4.3 CVSS 2.0 Medium EPSS 18% · top 2.9% CWE-200 · Information exposure
4.3CVSS 2.0 base score
18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
16 Jun 2026Last modified by NVD

Description

Internet Explorer 5 allows remote attackers to read files via an ExecCommand method called on an IFRAME.

AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ243638
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-042
http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ243638
https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-042

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-1999-0877), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.