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
Published Sep 8, 2009
10.0
HIGHCVSS 2.0
EPSS 92.35%
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.
Affected products
No data.
- n/a
- n/a
- n/a
- n/a
- n/a
- sp2
- sp2
- n/a
- n/a
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:C/I:C/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 92.35% (0.92347) | 99.82th | v5 (v2026.06.15) |
| Oct 1, 2026 | 92.35% (0.92347) | 99.82th | v5 (v2026.06.15) |
| Jun 15, 2026 | 90.23% (0.90227) | 99.78th | v5 (v2026.06.15) |
| Apr 1, 2025 | 92.11% (0.92109) | 99.70th | v4 (v2025.03.14) |
| Mar 27, 2025 | 90.85% (0.90853) | 99.61th | v4 (v2025.03.14) |
| Mar 17, 2025 | 91.86% (0.91855) | 99.68th | v4 (v2025.03.14) |
| Dec 12, 2024 | 97.10% (0.97098) | 99.83th | v3 (v2023.03.01) |
| Jul 8, 2024 | 97.14% (0.97141) | 99.81th | v3 (v2023.03.01) |
| May 29, 2024 | 97.28% (0.97280) | 99.86th | v3 (v2023.03.01) |
| Apr 18, 2024 | 97.27% (0.97266) | 99.84th | v3 (v2023.03.01) |
| Mar 8, 2024 | 97.29% (0.97288) | 99.85th | v3 (v2023.03.01) |
| Jan 26, 2024 | 97.22% (0.97224) | 99.81th | v3 (v2023.03.01) |
| Dec 8, 2023 | 97.27% (0.97274) | 99.83th | v3 (v2023.03.01) |
| Sep 11, 2023 | 97.32% (0.97323) | 99.81th | v3 (v2023.03.01) |
| Jul 28, 2023 | 97.29% (0.97292) | 99.78th | v3 (v2023.03.01) |
| Jun 14, 2023 | 96.90% (0.96896) | 99.54th | v3 (v2023.03.01) |
| May 2, 2023 | 96.81% (0.96809) | 99.46th | v3 (v2023.03.01) |
| Mar 20, 2023 | 97.36% (0.97358) | 99.79th | v3 (v2023.03.01) |
| Mar 7, 2023 | 97.36% (0.97365) | 99.79th | v3 (v2023.03.01) |
| Mar 6, 2023 | 88.00% (0.88004) | 99.78th | v2 (v2022.01.01) |
| Jul 18, 2022 | 88.00% (0.88004) | 99.77th | v2 (v2022.01.01) |
| Jul 17, 2022 | 83.12% (0.83118) | 99.58th | v2 (v2022.01.01) |
| Feb 4, 2022 | 88.00% (0.88004) | 99.75th | v2 (v2022.01.01) |
References (18)
- http://archives.neohapsis.com/archives/fulldisclosure/2009-09/0090.html mailing-listx_refsource_FULLDISCExploit
- http://blog.48bits.com/?p=510 x_refsource_MISC
- http://g-laurent.blogspot.com/2009/09/windows-vista7-smb20-negotiate-protocol.html x_refsource_MISCExploit
- http://isc.sans.org/diary.html?storyid=7093 x_refsource_MISC
- http://osvdb.org/57799 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/36623 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://www.exploit-db.com/exploits/9594 exploitx_refsource_EXPLOIT-DB
- http://www.kb.cert.org/vuls/id/135940 third-party-advisoryx_refsource_CERT-VNUS Government Resource
- http://www.microsoft.com/technet/security/advisory/975497.mspx x_refsource_CONFIRMVendor Advisory
- http://www.reversemode.com/index.php?option=com_content&task=view&id=64&Itemid=1 x_refsource_MISC
- http://www.securityfocus.com/archive/1/506300/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/506327/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/36299 vdb-entryx_refsource_BIDExploit
- http://www.securitytracker.com/id?1022848 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA09-286A.html third-party-advisoryx_refsource_CERTUS Government Resource
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-050 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/53090 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6489 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.