CVE-2010-0476

CVE-2010-0476 is a critical-severity vulnerability in Microsoft Windows 7 with a CVSS 2.0 base score of 10.0. Its EPSS exploit-prediction score of 34% places it in the 98th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

• Severity: Critical (CVSS 2.0 base score 10.0)
• EPSS exploit prediction: 34% (98th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-399
• Affected product: Microsoft Windows 7
• Published: 2010-04-14
• Last modified: 2026-06-16

Description

The SMB client in Microsoft Windows Server 2003 SP2, Vista Gold, SP1, and SP2, and Windows Server 2008 Gold and SP2 allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and reboot) via a crafted SMB transaction response that uses (1) SMBv1 or (2) SMBv2, aka "SMB Client Response Parsing Vulnerability."

Frequently asked questions

What is CVE-2010-0476?

The SMB client in Microsoft Windows Server 2003 SP2, Vista Gold, SP1, and SP2, and Windows Server 2008 Gold and SP2 allows remote SMB servers and man-in-the-middle attackers to execute arbitrary code or cause a denial of service (memory corruption and reboot) via a crafted SMB transaction response that uses (1) SMBv1 or (2) SMBv2, aka "SMB Client Response Parsing Vulnerability."

How severe is CVE-2010-0476?

CVE-2010-0476 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2010-0476 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-0476?

CVE-2010-0476 primarily affects Microsoft Windows 7. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-0476?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2010-0476 published?

CVE-2010-0476 was published on 2010-04-14 and last updated on 2026-06-16.

References

• http://secunia.com/advisories/39372
• http://www.securityfocus.com/bid/39336
• http://www.us-cert.gov/cas/techalerts/TA10-103A.html
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2010/ms10-020
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6918

Affected products (20)

• cpe:2.3:o:microsoft:windows_7:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_7:-:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_7:-:beta:*:*:*:*:*:*
• 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_server_2003:*:sp2:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:-:sp2:itanium:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x64:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:-:sp2:x86:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_vista:*:*:x64:*:*:*:*:*
• 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_vista:-:sp2:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:r2:itanium:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:r2:x64:*:*:*:*:*

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