Is CVE-2001-0547 being actively exploited?

CVE-2001-0547 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2001-0547?

CVE-2001-0547 has a CVSS 2.0 base score of 2.1 (LOW).

CVE-2001-0547

LOW · CVSS 2.1EPSS 1.7%EU EUVD

Memory leak in the proxy service in Microsoft Internet Security and Acceleration (ISA) Server 2000 allows local attackers to cause a denial of service (resource exhaustion).

Key facts

CVSS score: 2.1 (v2.0)
Severity: LOW
CVSS vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
EPSS score: 1.7% (77th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2001-0539)
Published: September 20, 2001
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2001-0539 in the EU Vulnerability Database. Last updated in EUVD on August 8, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / isa server

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

ISA Server 2000 with Service Pack 1 and Feature Pack 1, Firewall - Microsoft Corporation - Common Criteria BSI-DSZ-CC-0218-2003 - archived

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain