Is CVE-2002-1183 in the CISA KEV catalog?

No. CVE-2002-1183 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2002-1183?

CVE-2002-1183 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2002-1183?

CVE-2002-1183 has an EPSS score of 19.34% (97th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2002-1183

HIGHEPSS 97th pctl

7.5

CVSS v2

NVD

Description

Microsoft Windows 98 and Windows NT 4.0 do not properly verify the Basic Constraints of digital certificates, allowing remote attackers to execute code, aka "New Variant of Certificate Validation Flaw Could Enable Identity Spoofing" (CAN-2002-0862).

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

19.34%probability of exploitation in 30 days

97thpercentile

Very high risk: more likely to be exploited than 97% of all known CVEs.

References

http://www.securityfocus.com/bid/5410
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-050
https://exchange.xforce.ibmcloud.com/vulnerabilities/9776
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1059
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1455
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2108

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.