Vulnerability in Microsoft Windows 7
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 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."
Published · last modified .
CVSS v2 metric
CVSS v2 base score 7.1 (High). Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.346 (98.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.343 · newest: 0.346 · change: +0.002
Affected products
- Microsoft Windows 7
- Microsoft Windows Server 2008 — versions r2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- news.cnet.com/8301-27080_3-10395891-245.html
- www.securitytracker.com/id (vdb-entry)
- g-laurent.blogspot.com/2009/11/windows-7-server-2008r2-remote-kernel.html (Exploit)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:7186 (signature, vdb-entry)
- www.microsoft.com/technet/security/advisory/977544.mspx (Patch, Vendor Advisory)
- secunia.com/advisories/37347 (Vendor Advisory, third-party-advisory)
- www.vupen.com/english/advisories/2009/3216 (vdb-entry, Vendor Advisory)
- docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-020 (vendor-advisory)
- praetorianprefect.com/archives/2009/11/how-to-crash-windows-7-and-server-2008/ (Exploit)
- secunia.com/blog/66/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2009-3676?
- CVE-2009-3676 is a vulnerability in Microsoft Windows 7, classified under CWE-399. Published 2009-11-13.
- Is CVE-2009-3676 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.