Which products and versions are affected by CVE-2006-0900?

Affected: Freebsd versions 6.0. The full list is in the CVE brief.

Is CVE-2006-0900 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2006-0900 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2006-0900?

Public exploit code is available.

Is there a fix for CVE-2006-0900?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2006-0900 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2006-0900

HighPublic exploit

nfsd in FreeBSD 6.0 kernel allows remote attackers to cause a denial of service via a crafted NFS mount request, as demonstrated by the ProtoVer NFS test suite.

Published Feb 27, 2006 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2006-0900 is a high-severity vulnerability (CVSS 7.8 v2) affecting Freebsd.
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 65% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

7.8

AV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS (30-day exploit likelihood)

65%

Higher than 99.2% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2006-0900 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

nfsd in FreeBSD 6.0 kernel allows remote attackers to cause a denial of service via a crafted NFS mount request, as demonstrated by the ProtoVer NFS test suite.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
FreebsdFreebsd	6.0	n/a

Timeline

Publicly disclosed
Feb 27, 2006
Last updated
Apr 15, 2026

References

advisory19017
exploitExploitDB-1540
other[Dailydave] 20060226 fun with FreeBSD kernel
other521
otherfreebsd-nfsd-kernel-dos(24918)

2 more references in the full CVE brief

FAQ

Common Questions.

nfsd in FreeBSD 6.0 kernel allows remote attackers to cause a denial of service via a crafted NFS mount request, as demonstrated by the ProtoVer NFS test suite.
Affected: Freebsd versions 6.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2006-0900 Running On Your Attack Surface?

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