Known exploited vulnerability
CVE-2011-1889
The short answer
CVE-2011-1889 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-03-03: attackers are using it, so patch it first. The vendor has linked a patch.
What it 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."
Weakness: CWE-119.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Mar 3, 2022
Federal due date Mar 24, 2022
EPSS, next 30 days
49%
Higher than 99% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-040 PatchVendor Advisory
- exchange.xforce.ibmcloud.com/vulnerabilities/67736 Third Party AdvisoryVDB Entry
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12642 Broken Link
- docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-040 PatchVendor Advisory
- exchange.xforce.ibmcloud.com/vulnerabilities/67736 Third Party AdvisoryVDB Entry
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12642 Broken Link
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2011-1889 US Government Resource
Questions
Is CVE-2011-1889 being exploited?
Yes. CISA added CVE-2011-1889 to its Known Exploited Vulnerabilities catalog on 2022-03-03, with a federal remediation due date of 2022-03-24.
How do I fix CVE-2011-1889?
CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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