CVE-2010-3939
CVE-2010-3939 is a high-severity vulnerability in Microsoft Windows 2003 Server with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 2.0 base score 7.2)
- EPSS exploit prediction: 2% (78th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Microsoft Windows 2003 Server
- Published:
- Last modified:
Description
Buffer overflow in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows local users to gain privileges via vectors related to improper memory allocation for copies from user mode, aka "Win32k Buffer Overflow Vulnerability."
Frequently asked questions
- What is CVE-2010-3939?
- Buffer overflow in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows local users to gain privileges via vectors related to improper memory allocation for copies from user mode, aka "Win32k Buffer Overflow Vulnerability."
- How severe is CVE-2010-3939?
- CVE-2010-3939 has a CVSS 2.0 base score of 7.2, rated high severity.
- Is CVE-2010-3939 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (78th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2010-3939?
- CVE-2010-3939 primarily affects Microsoft Windows 2003 Server. In total, 18 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2010-3939?
- 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-2010-3939 published?
- CVE-2010-3939 was published on 2010-12-16 and last updated on 2026-06-16.
References
- http://www.securitytracker.com/id?1024880
- http://www.us-cert.gov/cas/techalerts/TA10-348A.html
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-098
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12252
Affected products (18)
- cpe:2.3:o:microsoft:windows_2003_server:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2003_server:*:sp2:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_7:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:*:x32:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:r2:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*
- 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:-:sp2:itanium:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:*
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