CVE-2009-3103

highpriority · act · 82EPSS 0.923 · 100 %ileexploit · functionalEURUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

15 exploits · functional

Likely / severe?

92.3% (100th) EPSS

CVSS 10 · high

Is it mine?

9 products

Check your exposure

Who says so?

3 sources

enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 10–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v2.010criticalAV:N/AC:L/Au:N/C:C/I:C/A:Csecondary · FSTEC (BDU) RU

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:C/E:Hsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-399USprimaryCWE-399US

exploits (15)

Public proof-of-concept and weaponised exploit code.

EDB-10005Microsoft Windows 7/2008 R2 - Remote Kernel Crashfunctional · exploit_db
EDB-12524Microsoft Windows - SMB2 Negotiate Protocol '0x72' Response Denial of Servicefunctional · exploit_db
EDB-16363Microsoft Windows - 'srv2.sys' SMB Negotiate ProcessID Function Table Dereference (MS09-050) (Metasploit)functional · exploit_db
EDB-9594Microsoft Windows Vista/7 - SMB2.0 Negotiate Protocol Request Remote Blue Screen of Death (MS07-063)functional · exploit_db
auxiliary/dos/windows/smb/ms09_050_smb2_negotiate_pidhighMicrosoft SRV2.SYS SMB Negotiate ProcessID Function Table Dereferencefunctional · metasploit
auxiliary/dos/windows/smb/ms09_050_smb2_session_logoffMicrosoft SRV2.SYS SMB2 Logoff Remote Kernel NULL Pointer Dereferencefunctional · metasploit

affected products (9)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Microsoft Corp Windows Server 2008all versionsfstec_bduRU
Microsoft Corp Windows Server 2008 Service Pack 2all versionsfstec_bduRU
Microsoft Corp Windows Vistaall versionsfstec_bduRU
Microsoft Corp Windows Vista Service Pack 1all versionsfstec_bduRU
Microsoft Corp Windows Vista Service Pack 2all versionsfstec_bduRU
microsoft windows server 2008all versionsnvdUScpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
microsoft windows server 2008= sp2nvdUScpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
microsoft windows vistaall versionsnvdUScpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2009-09-08modified 2026-06-16

related (3,726)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2018-0180US	medium5.9OT critical	4.93% (92nd)	KEV	2018-03-28
Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected sy…
CVE-2018-0179US	medium5.9OT critical	4.93% (92nd)	KEV	2018-03-28
Multiple vulnerabilities in the Login Enhancements (Login Block) feature of Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of an affected sy…
CVE-2018-0161US	medium6.3OT critical	4.12% (91st)	KEV	2018-03-28
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software running on certain models of Cisco Catalyst Switches could allow an authenticated,…
CVE-2018-0156US	high7.5OT critical	9.36% (95th)	KEV	2018-03-28
A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected devi…
CVE-2018-0154US	high7.5OT critical	7.07% (94th)	KEV	2018-03-28
A vulnerability in the crypto engine of the Cisco Integrated Services Module for VPN (ISM-VPN) running Cisco IOS Software could allow an unauthenticated, remote attacker to cause a…

+3721 more

references (36)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan