CVE-2000-0673
The NetBIOS Name Server (NBNS) protocol does not perform authentication, which allows remote attackers to cause a denial of service by sending a spoofed Name Conflict or Name Release datagram, aka the "NetBIOS Name Server Protocol Spoofing" vulnerability.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 33.4%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
Description
The NetBIOS Name Server (NBNS) protocol does not perform authentication, which allows remote attackers to cause a denial of service by sending a spoofed Name Conflict or Name Release datagram, aka the "NetBIOS Name Server Protocol Spoofing" vulnerability.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 33.45% probability · 98th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 1 August 2000
- CISA KEV
- Not listed
- Affected
- microsoft/windows 2000 · microsoft/windows nt
- Source
- cve@mitre.org
EPSS 33.4% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://www.nai.com/research/covert/advisories/044.asp
- http://www.securityfocus.com/bid/1514Exploit, Patch, Vendor Advisory
- http://www.securityfocus.com/bid/1515
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-047
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5035
- http://www.nai.com/research/covert/advisories/044.asp
- http://www.securityfocus.com/bid/1514Exploit, Patch, Vendor Advisory
- http://www.securityfocus.com/bid/1515
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-047
- https://exchange.xforce.ibmcloud.com/vulnerabilities/5035
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.