CVE-2011-1889

CRITICAL(9.8)KEVElevated Risk

Microsoft Forefront TMG Remote Code Execution Vulnerability

Description

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."

KEV Information

Vendor
Microsoft
Product
Forefront Threat Management Gateway (TMG)
Date Added
March 3, 2022
Due Date
March 24, 2022
Required Action
Apply updates per vendor instructions.

CVSS Score

Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HOpen in Calculator
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9

CWEs

Affected Products

VendorProductVersion
microsoftforefront threat management gateway2010

Multiple CVSS Assessments

Source: [email protected](Primary)
9.8
CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0(Secondary)
9.8
CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

CVSS Score

9.8
CRITICAL(9.8)

EPSS Score

EPSS Score48.37%
EPSS Percentile98.7%

Dates

PublishedJune 16, 2011
Last ModifiedJune 16, 2026
StatusAnalyzed
CVSS Versionv3.1

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