Is CVE-2001-0877 in the CISA KEV catalog?

No. CVE-2001-0877 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2001-0877?

CVE-2001-0877 has a CVSS v2 base score of 5.0 (MEDIUM).

What is the EPSS score for CVE-2001-0877?

CVE-2001-0877 has an EPSS score of 37.18% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2001-0877

MEDIUMEPSS 98th pctl

5.0

CVSS v2

NVD

Description

Universal Plug and Play (UPnP) on Windows 98, 98SE, ME, and XP allows remote attackers to cause a denial of service via (1) a spoofed SSDP advertisement that causes the client to connect to a service on another machine that generates a large amount of traffic (e.g., chargen), or (2) via a spoofed SSDP announcement to broadcast or multicast addresses, which could cause all UPnP clients to send traffic to a single target system.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

37.18%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.