CVE-2000-0970
CVE-2000-0970 is a high-severity vulnerability in Microsoft Internet Information Server with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 46% places it in the 99th percentile, indicating an elevated likelihood of exploitation.
Key facts
- Severity: High (CVSS 2.0 base score 7.5)
- EPSS exploit prediction: 46% (99th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Internet Information Server
- Published:
- Last modified:
Description
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.
Frequently asked questions
- What is 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.
- How severe is CVE-2000-0970?
- CVE-2000-0970 has a CVSS 2.0 base score of 7.5, rated high severity.
- Is CVE-2000-0970 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 46% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2000-0970?
- CVE-2000-0970 primarily affects Microsoft Internet Information Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2000-0970?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2000-0970 published?
- CVE-2000-0970 was published on 2000-12-19 and last updated on 2026-06-16.
References
- http://www.acrossecurity.com/aspr/ASPR-2000-07-22-1-PUB.txt
- http://www.osvdb.org/7265
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-080
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5396
Affected products (2)
- cpe:2.3:a:microsoft:internet_information_server:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:*
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