UpHeron
All vulnerabilities

Servers and applications

CVE-2009-2906

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.

Severity
Medium 4.0
Published
7 Oct 2009
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
3.0.37, 3.2.15, 3.3.8
Exploit chance
4.2% in the next 30 daysHigher than 91% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Infinite loop (CWE-835)
Attack
Over the network · Needs a login
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:S/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
SambaServers and applications · cpe:a:samba:samba
  • Every version before 3.0.37
  • From 3.2.0 before 3.2.15
  • From 3.3.0 before 3.3.8
  • Version 3.4.0
  • Version 3.4.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2009-2906
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2009-2906