Is CVE-2009-2906 being actively exploited?

CVE-2009-2906 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2009-2906?

CVE-2009-2906 has a CVSS 2.0 base score of 4.0 (MEDIUM).

CVE-2009-2906

MEDIUM · CVSS 4.0EPSS 4.2%EU EUVD

smbd in Samba 3.0 before 3.0.37, 3.2 before 3.2.15, 3.3 before 3.3.8, and 3.4 before 3.4.2 allows remote authenticated users to cause a denial of service (infinite loop) via an unanticipated oplock break notification reply packet.

Key facts

CVSS score: 4.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:S/C:N/I:N/A:P
Weakness (CWE): CWE-835
EPSS score: 4.2% (91th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2009-2894)
Published: October 7, 2009
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2009-2894 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.

View on the EU Vulnerability Database

Affected products

canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
canonical / ubuntu linux
samba / samba
samba / samba
samba / samba

References

http://lists.apple.com/archives/security-announce/2010//Mar/msg00001.html(Mailing List, Third Party Advisory)
http://lists.opensuse.org/opensuse-security-announce/2009-10/msg00004.html(Mailing List, Third Party Advisory)
http://news.samba.org/releases/3.0.37/(Vendor Advisory)
http://news.samba.org/releases/3.2.15/(Vendor Advisory)
http://news.samba.org/releases/3.3.8/(Vendor Advisory)
http://news.samba.org/releases/3.4.2/(Vendor Advisory)
http://osvdb.org/58519(Broken Link)
http://samba.org/samba/security/CVE-2009-2906.html(Vendor Advisory)
http://secunia.com/advisories/36893(Vendor Advisory)
http://secunia.com/advisories/36918(Vendor Advisory)
http://secunia.com/advisories/36937(Vendor Advisory)
http://secunia.com/advisories/36953(Vendor Advisory)
http://secunia.com/advisories/37428(Third Party Advisory)
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.561439(Patch, Third Party Advisory)
http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021111.1-1(Broken Link)
http://support.apple.com/kb/HT4077(Third Party Advisory)
http://wiki.rpath.com/Advisories:rPSA-2009-0145(Third Party Advisory)
http://www.securityfocus.com/archive/1/507856/100/0/threaded(Third Party Advisory, VDB Entry)
http://www.securityfocus.com/bid/36573(Patch, Third Party Advisory, VDB Entry)
http://www.securitytracker.com/id?1022976(Third Party Advisory, VDB Entry)
http://www.ubuntu.com/usn/USN-839-1(Patch, Third Party Advisory)
http://www.vupen.com/english/advisories/2009/2810(Patch, Third Party Advisory)
https://exchange.xforce.ibmcloud.com/vulnerabilities/53575(Third Party Advisory, VDB Entry)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7090(Third Party Advisory)
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9944(Third Party Advisory)
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00095.html(Patch, Third Party Advisory)
https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00098.html(Patch, Third Party Advisory)

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

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