Skip to content
CVE Tracker
Back

CVE-2011-1889

The NSPLookupServiceNext function in the client in Microsoft Forefront Threat Management Gateway (TMG) 2010 allows remote attackers to…

Critical9.8Known exploitedEPSS 49.0%
Published
Updated
Reserved
Assigned by
microsoft

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."

Exploited in the wild

CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Microsoft Forefront TMG Remote Code Execution Vulnerability.

Added
3 Mar 2022
Fix due (US federal)
24 Mar 2022
Used by ransomware
Not known

Apply updates per vendor instructions.

Scores

CVSS scores of CVE-2011-1889, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVDNVD · Analyzed3.1Critical9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS (exploitation in 30 days)
49.0% · top 1.1% of all CVEs (2 Nov 2026)
CISA SSVC
Exploitation: active · Automatable: yes · Technical impact: total

Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.

Weakness

Affected products

  • n/a

    • affected n/a

References (7)

Sources

The same CVE in the primary databases and aggregators, to check against.

Record last updated .