Is CVE-1999-1593 being actively exploited?

CVE-1999-1593 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-1999-1593?

CVE-1999-1593 has a CVSS 2.0 base score of 7.6 (HIGH).

CVE-1999-1593

HIGH · CVSS 7.6EPSS 18.1%EU EUVD

Windows Internet Naming Service (WINS) allows remote attackers to cause a denial of service (connectivity loss) or steal credentials via a 1Ch registration that causes WINS to change the domain controller to point to a malicious server. NOTE: this problem may be limited when Windows 95/98 clients are used, or if the primary domain controller becomes unavailable.

Key facts

CVSS score: 7.6 (v2.0)
Severity: HIGH
CVSS vector: AV:N/AC:H/Au:N/C:C/I:C/A:C
Weakness (CWE): CWE-59
EPSS score: 18.1% (97th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-1999-1574)
Published: January 15, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-1999-1574 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

microsoft / windows 2000
microsoft / windows 95
microsoft / windows 98

References

http://archives.neohapsis.com/archives/ntbugtraq/1998-1999/msg00371.html(Broken Link, Third Party Advisory)
http://seclists.org/bugtraq/2001/Jan/0264.html(Mailing List, Third Party Advisory)
http://seclists.org/bugtraq/2001/Jan/0269.html(Mailing List, Third Party Advisory)
http://seclists.org/bugtraq/2001/Jan/0271.html(Mailing List, Third Party Advisory)
http://seclists.org/bugtraq/2001/Jan/0274.html(Mailing List, Third Party Advisory)
http://seclists.org/bugtraq/2001/Jan/0276.html(Mailing List, Third Party Advisory)
http://seclists.org/bugtraq/2001/Jan/0289.html(Mailing List, Third Party Advisory)
http://seclists.org/bugtraq/2001/Jan/0298.html(Mailing List, Third Party Advisory)
http://www.securityfocus.com/bid/2221(Third Party Advisory, VDB Entry)
https://www2.sans.org/reading_room/whitepapers/win2k/185.php(Broken Link, Exploit)

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