What’s Vulnerable › Vulnerabilities

CVE-1999-0858

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 13.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2000-01-04 · updated 2026-06-16
• Weakness: CWE-16

Description

Internet Explorer 5 allows a remote attacker to modify the IE client's proxy configuration via a malicious Web Proxy Auto-Discovery (WPAD) server.

Affected products

• Microsoft Internet Explorer 11: 5.0

References

• http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ247333
• http://www.securityfocus.com/bid/846
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-054
• http://support.microsoft.com/default.aspx?scid=kb%3B%5BLN%5D%3BQ247333
• http://www.securityfocus.com/bid/846
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/1999/ms99-054

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