Is CVE-2002-1561 in the CISA KEV catalog?

No. CVE-2002-1561 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2002-1561?

CVE-2002-1561 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2002-1561?

CVE-2002-1561 has an EPSS score of 42.63% (99th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2002-1561

MEDIUMEPSS 99th pctl

5.0

CVSS v2

NVD

Description

The RPC component in Windows 2000, Windows NT 4.0, and Windows XP allows remote attackers to cause a denial of service (disabled RPC service) via a malformed packet to the RPC Endpoint Mapper at TCP port 135, which triggers a null pointer dereference.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

42.63%probability of exploitation in 30 days

99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

http://www.kb.cert.org/vuls/id/261537
http://www.securityfocus.com/archive/1/296114/2002-10-14/2002-10-20/0
http://www.securityfocus.com/bid/6005
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2003/ms03-010
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A59

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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.