CVE-2011-3406
CVE-2011-3406 is a high-severity vulnerability in Microsoft Windows 7 with a CVSS 3.x base score of 8.8. Its EPSS exploit-prediction score of 23% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- CVSS v2: 9.0
- EPSS exploit prediction: 23% (98th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Microsoft Windows 7
- Published:
- Last modified:
Description
Buffer overflow in Active Directory, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service (AD LDS) in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote authenticated users to execute arbitrary code via a crafted query that leverages incorrect memory initialization, aka "Active Directory Buffer Overflow Vulnerability."
Frequently asked questions
- What is CVE-2011-3406?
- Buffer overflow in Active Directory, Active Directory Application Mode (ADAM), and Active Directory Lightweight Directory Service (AD LDS) in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows remote authenticated users to execute arbitrary code via a crafted query that leverages incorrect memory initialization, aka "Active Directory Buffer Overflow Vulnerability."
- How severe is CVE-2011-3406?
- CVE-2011-3406 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2011-3406 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 23% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2011-3406?
- CVE-2011-3406 primarily affects Microsoft Windows 7. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2011-3406?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2011-3406 published?
- CVE-2011-3406 was published on 2011-12-14 and last updated on 2026-06-16.
References
- http://www.us-cert.gov/cas/techalerts/TA11-347A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-095
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14037
Affected products (10)
- cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_7:-:sp1:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_7:-:sp1:x86:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x32:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:sp2:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:r2:*:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:*
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