CVE-2000-0489
FreeBSD, NetBSD, and OpenBSD allow an attacker to cause a denial of service by creating a large number of socket pairs using the socketpair function, setting a large buffer size via setsockopt, then writing large buffers.
Does this matter?
A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is low and EPSS is 0.7%. Treat it as high on anything reachable from the internet.
Description
FreeBSD, NetBSD, and OpenBSD allow an attacker to cause a denial of service by creating a large number of socket pairs using the socketpair function, setting a large buffer size via setsockopt, then writing large buffers.
- CVSS 2.0
- 2.1 LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 0.70% probability · 53th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 5 September 1999
- CISA KEV
- Not listed
- Affected
- freebsd/freebsd · netbsd/netbsd · openbsd/openbsd
- Source
- cve@mitre.org
EPSS 0.7% since 26 October 2026; no change recorded yet. 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.securityfocus.com/bid/622
- http://www.securityfocus.com/templates/archive.pike?list=1&msg=NCBBKFKDOLAGKIAPMILPCEJLCEAA.labs%40ussrback.com
- http://www.securityfocus.com/templates/archive.pike?list=1&msg=Pine.LNX.4.10.9908270039010.16315-100000%40thetis.deor.org
- https://exchange.xforce.ibmcloud.com/vulnerabilities/3298
- http://www.securityfocus.com/bid/622
- http://www.securityfocus.com/templates/archive.pike?list=1&msg=NCBBKFKDOLAGKIAPMILPCEJLCEAA.labs%40ussrback.com
- http://www.securityfocus.com/templates/archive.pike?list=1&msg=Pine.LNX.4.10.9908270039010.16315-100000%40thetis.deor.org
- https://exchange.xforce.ibmcloud.com/vulnerabilities/3298
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.