CVE-2009-3103
Array index error in the SMBv2 protocol implementation in srv2.sys in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold…
- 10.0HighCVSS base score
- 92.3%Exploitation in 30 daysEPSS · top 0.2% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 9Public exploitsMetasploit, Nuclei and Exploit-DB
Description
Array index error in the SMBv2 protocol implementation in srv2.sys in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold and SP2, and Windows 7 RC allows remote attackers to execute arbitrary code or cause a denial of service (system crash) via an & (ampersand) character in a Process ID High header field in a NEGOTIATE PROTOCOL REQUEST packet, which triggers an attempted dereference of an out-of-bounds memory location, aka "SMBv2 Negotiation Vulnerability." NOTE: some of these details are obtained from third party information.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list 3 Metasploit modules and 6 Exploit-DB entries for it. A reference of the record is tagged as an exploit.
Show the exploits10
Metasploit modules3 modules
- MS09-050 Microsoft SRV2.SYS SMB Negotiate ProcessID Function Table Dereference (Metasploit module) (opens in a new tab)
exploit/windows/smb/ms09_050_smb2_negotiate_func_indexRank gooddisclosed 7 Sept 2009
- Microsoft SRV2.SYS SMB Negotiate ProcessID Function Table Dereference (Metasploit module) (opens in a new tab)
auxiliary/dos/windows/smb/ms09_050_smb2_negotiate_pidhighRank normal
- Microsoft SRV2.SYS SMB2 Logoff Remote Kernel NULL Pointer Dereference (Metasploit module) (opens in a new tab)
auxiliary/dos/windows/smb/ms09_050_smb2_session_logoffRank normal
Exploit-DB6 entries
- Microsoft Windows - 'srv2.sys' SMB Code Execution (Python) (MS09-050) (Exploit-DB entry) (opens in a new tab)
EDB-ID 40280remote, windowspublished 26 Feb 2016Not verified
- Microsoft Windows - 'srv2.sys' SMB Negotiate ProcessID Function Table Dereference (MS09-050) (Exploit-DB entry) (opens in a new tab)
EDB-ID 14674remote, windowspublished 17 Aug 2010Not verified
- Microsoft Windows - 'srv2.sys' SMB Negotiate ProcessID Function Table Dereference (MS09-050) (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 16363remote, windowspublished 3 Jul 2010Verified
- Microsoft Windows - SMB2 Negotiate Protocol '0x72' Response Denial of Service (Exploit-DB entry) (opens in a new tab)
EDB-ID 12524dos, windowspublished 7 May 2010Verified
- Microsoft Windows 7/2008 R2 - Remote Kernel Crash (Exploit-DB entry) (opens in a new tab)
EDB-ID 10005dos, windowspublished 11 Nov 2009Verified
- Microsoft Windows Vista/7 - SMB2.0 Negotiate Protocol Request Remote Blue Screen of Death (MS07-063) (Exploit-DB entry) (opens in a new tab)
EDB-ID 9594dos, windowspublished 9 Sept 2009Verified
References tagged exploit1 reference
- 9594 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By microsoft
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 | High10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 92.3% · top 0.2% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 10.0.
Affected products
n/a
- affected n/a
References
18
- 36299 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- VU#135940 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- http://www.microsoft.com/technet/security/advisory/975497.mspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.reversemode.com/index.php?option=com_content&task=view&id=64&Itemid=1 (opens in a new tab)x_refsource_MISCx_transferred
- http://blog.48bits.com/?p=510 (opens in a new tab)x_refsource_MISCx_transferred
- MS09-050 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- TA09-286A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- http://isc.sans.org/diary.html?storyid=7093 (opens in a new tab)x_refsource_MISCx_transferred
- 36623 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://g-laurent.blogspot.com/2009/09/windows-vista7-smb20-negotiate-protocol.html (opens in a new tab)x_refsource_MISCx_transferred
- 1022848 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- 20090909 SMB SRV2.SYS Denial of Service PoC (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 9594 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- 20090907 Windows Vista/7 : SMB2.0 NEGOTIATE PROTOCOL REQUEST Remote B.S.O.D. (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- 57799 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- win-srv2sys-code-execution(53090) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 20090908 Regarding Microsoft srv2.sys SMB2.0 NEGOTIATE BSOD (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- oval:org.mitre.oval:def:6489 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_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-2009-3086 (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-2009-3103)Record last updated .