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CVE-2000-0970

IIS 4.0 and 5.0 .ASP pages send the same Session ID cookie for secure and insecure web sessions, which could allow remote attackers to hijack the secure web session of the user if that user moves to an insecure session, aka the "Session ID Cookie Marking" vulnerability.

Published: Dec 19, 2000 Modified: Apr 16, 2026

CVSS Metrics

Affected Products (2)

Vendor Product Version
microsoft internet_information_server 4.0
microsoft internet_information_services 5.0

GitHub Security Advisory GHSA-rhm7-5gpj-qgx2

IIS 4.0 and 5.0 .ASP pages send the same Session ID cookie for secure and insecure web sessions,...

Risk Scores

CVSS Score 7.5 / 10
EPSS Score 38.46%

Top 3% most likely to be exploited

Threat Score 41.5 / 100

Data Sources

NVD EPSS GitHub