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…
- 7.1HighCVSS base score
- 34.6%Exploitation in 30 daysEPSS · top 1.6% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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."
Timeline
ID reserved
By microsoft
- 31 days later
· 31 days later
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.1 | AV:N/AC:M/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 34.6% · top 1.6% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Affected products
n/a
- affected n/a
References
13
- http://news.cnet.com/8301-27080_3-10395891-245.html (opens in a new tab)x_refsource_MISCx_transferred
- 1023179 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- http://g-laurent.blogspot.com/2009/11/windows-7-server-2008r2-remote-kernel.html (opens in a new tab)x_refsource_MISCx_transferred
- oval:org.mitre.oval:def:7186 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://www.microsoft.com/technet/security/advisory/977544.mspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- 37347 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2009-3216 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- MS10-020 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- http://praetorianprefect.com/archives/2009/11/how-to-crash-windows-7-and-server-2008/ (opens in a new tab)x_refsource_MISCx_transferred
- http://secunia.com/blog/66/ (opens in a new tab)x_refsource_MISCx_transferred
- 20091111 Windows 7 , Server 2008R2 Remote Kernel Crash (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- http://blogs.technet.com/msrc/archive/2009/11/13/microsoft-security-advisory-977544-released.aspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- TA10-103A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-3651 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-3676)Record last updated .