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Tool Directory

CVE-2009-2526

HighPublished

Microsoft Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 do not properly validate fields in SMBv2 packets, which allows remote attackers to...

Published: Oct 14, 2009
Updated: Aug 7, 2024
Assigning CNA: microsoft
Evidence observed: Aug 17, 2010

Primary CVSS

7.8/ 10High

nvd · CVSS 2.0

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

EPSS probability estimate

81.9%

High · next 30 days

Percentile: 99.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Microsoft Windows Vista Gold, SP1, and SP2 and Server 2008 Gold and SP2 do not properly validate fields in SMBv2 packets, which allows remote attackers to cause a denial of service (infinite loop and system hang) via a crafted packet to the Server service, aka "SMBv2 Infinite Loop Vulnerability."

Sources

Microsoft Windows - 'srv2.sys' SMB Negotiate ProcessID Function Table Dereference (MS09-050)Exploit
Piotr Bania · windows · Aug 17, 2010
Microsoft Windows - 'srv2.sys' SMB Code Execution (Python) (MS09-050)Exploit
ohnozzy · windows · Feb 26, 2016

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