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CVE-2009-3676

The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers…

High7.1EPSS 34.6%
Published
Updated
Reserved
Assigned by
microsoft

Description

The SMB client in the kernel in Microsoft Windows Server 2008 R2 and Windows 7 allows remote SMB servers and man-in-the-middle attackers to cause a denial of service (infinite loop and system hang) via a (1) SMBv1 or (2) SMBv2 response packet that contains (a) an incorrect length value in a NetBIOS header or (b) an additional length field at the end of this response packet, aka "SMB Client Incomplete Response Vulnerability."

Scores

CVSS scores of CVE-2009-3676, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified2.0High7.1AV:N/AC:M/Au:N/C:N/I:N/A:C
EPSS (exploitation in 30 days)
34.6% · top 1.6% of all CVEs (5 Nov 2026)
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.

Weakness

Affected products

  • n/a

    • affected n/a

References (13)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .