CVEvulnerability

CVE-2011-1889

9.8 CRITICAL Known exploited Published 2011-06-16 Modified 2026-06-16 Official page ↗

CISA Known Exploited Vulnerability

Microsoft Forefront TMG Remote Code Execution Vulnerability — Microsoft Forefront Threat Management Gateway (TMG)

A remote code execution vulnerability exists in the Forefront Threat Management Gateway (TMG) Firewall Client Winsock provider that could allow code execution in the security context of the client application.

Added to KEV: 2022-03-03
Remediation due: 2022-03-24
Ransomware use: Unknown
Required action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2011-1889

Status: Analyzed
Published: 2011-06-16
Last modified: 2026-06-16
Assigner: [email protected]
CVSS 3.1 ([email protected]): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0): 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected]): 10.0 HIGH — AV:N/AC:L/Au:N/C:C/I:C/A:C
Weaknesses: CWE-119

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."

Affected configurations

• microsoft forefront threat management gateway 2010

Weakness · CWE (1)

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer weakness

References