Is CVE-2002-1973 in the CISA KEV catalog?

No. CVE-2002-1973 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2002-1973?

CVE-2002-1973 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2002-1973?

CVE-2002-1973 has an EPSS score of 40.05% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2002-1973

HIGHEPSS 98th pctl

7.5

CVSS v2

NVD

Description

Buffer overflow in CHttpServer::OnParseError in the ISAPI extension (Isapi.cpp) when built using Microsoft Foundation Class (MFC) static libraries in Visual C++ 5.0, and 6.0 before SP3, as used in multiple products including BadBlue, allows remote attackers to cause a denial of service (access violation and crash) and possibly execute arbitrary code via a long query string that causes a parsing error.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

40.05%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

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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.