Microsoft Forefront Threat Management Gateway 2010 NSPLookupServiceNext memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Microsoft Forefront Threat Management Gateway 2010. This impacts the function NSPLookupServiceNext. Performing a manipulation results in memory corruption. This vulnerability was named CVE-2011-1889. In addition, an exploit is available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Microsoft Forefront Threat Management Gateway 2010. This affects the function NSPLookupServiceNext. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The NSPLookupServiceNext function in the client in Microsoft Forefront Threat Management Gateway (TMG) 2010 allows remote attackers to execute arbitrary code via vectors involving unspecified requests, aka "TMG Firewall Client Memory Corruption Vulnerability."

The weakness was presented 06/16/2011 as MS11-040 as confirmed bulletin (Technet). The advisory is shared at microsoft.com. This vulnerability is uniquely identified as CVE-2011-1889 since 05/04/2011. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details and a exploit are known. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/22/2026).

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 55120 (MS11-040: Vulnerability in Threat Management Gateway Firewall Client Could Allow Remote Code Execution (2520426)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 90705 (Microsoft Threat Management Gateway Firewall Client Remote Code Execution Vulnerability (MS11-040)). The CISA Known Exploited Vulnerabilities Catalog lists this issue since 03/03/2022 with a due date of 03/24/2022:

Apply updates per vendor instructions.

Applying the patch MS11-040 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12194.

The vulnerability is also documented in the databases at X-Force (67736), Tenable (55120), SecurityFocus (BID 48181†), Secunia (SA44857†) and SecurityTracker (ID 1025637†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.9
VulDB Meta Temp Score: 9.7

VulDB Base Score: 10.0
VulDB Temp Score: 9.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

ADP CISA Base Score: 9.8
ADP CISA Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

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Nessus ID: 55120
Nessus Name: MS11-040: Vulnerability in Threat Management Gateway Firewall Client Could Allow Remote Code Execution (2520426)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 902444
OpenVAS Name: MS Windows Threat Management Gateway Firewall Client Remote Code Execution Vulnerability (2520426)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS11-040
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/04/2011 🔍
06/14/2011 +41 days 🔍
06/14/2011 +0 days 🔍
06/14/2011 +0 days 🔍
06/15/2011 +1 days 🔍
06/15/2011 +0 days 🔍
06/15/2011 +0 days 🔍
06/16/2011 +1 days 🔍
06/16/2011 +0 days 🔍
03/23/2015 +1376 days 🔍
04/22/2026 +4048 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-040
Status: Confirmed

CVE: CVE-2011-1889 (🔍)
GCVE (CVE): GCVE-0-2011-1889
GCVE (VulDB): GCVE-100-57693

OVAL: 🔍
IAVM: 🔍

X-Force: 67736
SecurityFocus: 48181 - Microsoft Forefront Threat Management Gateway (TMG) Firewall Client Memory Corruption Vulnerability
Secunia: 44857 - Microsoft Threat Management Gateway Firewall Client Vulnerability, Highly Critical
SecurityTracker: 1025637 - Microsoft Forefront Threat Management Gateway Bounds Validation Flaw in Winsock Provider Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 31772 - [MS11-040] Microsoft Forefront Threat Management Gateway 2010 Remote Memory Corruption Vulnerability, High

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/23/2015 16:50
Updated: 04/22/2026 09:30
Changes: 03/23/2015 16:50 (72), 03/24/2017 07:54 (17), 11/09/2021 01:31 (2), 04/23/2024 08:05 (26), 07/24/2024 16:40 (12), 09/09/2024 22:29 (1), 01/13/2025 00:12 (2), 04/22/2026 09:30 (10)
Complete: 🔍
Cache ID: 216::103

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