CVE-2011-1889
Microsoft Forefront TMG Remote Code Execution Vulnerability
This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Forefront Threat Management Gateway (TMG), fix it now.
CISA required action: Apply updates per vendor instructions.
US federal civilian agencies must remediate by Mar 24, 2022.
Patch status
Official fix available since
Apply the vendor's update to every affected system. Check the fixed-in versions below where known.
Basis: NVD patch reference
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."
Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.
Affected products
| Product | Vendor | Source |
|---|---|---|
| Forefront Threat Management Gateway (TMG) | Microsoft | KEV |
Sources: KEV = CISA Known Exploited Vulnerabilities catalog. Version details have not been published yet.
Intelligence timeline
Developments from the last 30 days, newest first.
- CVSS scoredUpdateKEV
CVE-2011-1889 scored CVSS 9.8: Microsoft Forefront Threat Management Gateway (TMG), Microsoft Forefront TMG Remote Code Execution Vulnerability
CISA lists this as exploited in the wild. Unpatched Forefront Threat Management Gateway (TMG) systems are exposed to active attacks now.
Basis: NIST National Vulnerability Database
- Patch releasedUpdateKEV
Patch released for CVE-2011-1889: Microsoft Forefront Threat Management Gateway (TMG), Microsoft Forefront TMG Remote Code Execution Vulnerability
An official fix is now available for Microsoft Forefront Threat Management Gateway (TMG). This vulnerability is being exploited, so apply it promptly.
Basis: NVD patch reference
1 earlier event is available with a subscription. See plans.
Coverage
We have not published a story about this vulnerability yet.