How severe is CVE-2013-3876?

CVE-2013-3876 has a CVSS 2.0 base score of 7.1, rated high severity.

Is CVE-2013-3876 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3876?

CVE-2013-3876 primarily affects Microsoft Windows 7. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3876?

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-2013-3876 published?

CVE-2013-3876 was published on 2013-11-18 and last updated on 2026-06-16.

CVE-2013-3876

CVE-2013-3876 is a high-severity vulnerability in Microsoft Windows 7 with a CVSS 2.0 base score of 7.1. 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-20.

Key facts

Severity: High (CVSS 2.0 base score 7.1)
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-20
Affected product: Microsoft Windows 7
Published: 2013-11-18
Last modified: 2026-06-16

Description

DirectAccess in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not properly verify server X.509 certificates, which allows man-in-the-middle attackers to spoof servers and read encrypted domain credentials via a crafted certificate.

Frequently asked questions

What is CVE-2013-3876?: DirectAccess in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, and Windows RT Gold and 8.1 does not properly verify server X.509 certificates, which allows man-in-the-middle attackers to spoof servers and read encrypted domain credentials via a crafted certificate.
How severe is CVE-2013-3876?: CVE-2013-3876 has a CVSS 2.0 base score of 7.1, rated high severity.
Is CVE-2013-3876 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3876?: CVE-2013-3876 primarily affects Microsoft Windows 7. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3876?: 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-2013-3876 published?: CVE-2013-3876 was published on 2013-11-18 and last updated on 2026-06-16.

References

http://technet.microsoft.com/security/advisory/2862152

Affected products (15)

cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2003:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:itanium:*
cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:-:sp1:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:-:sp2:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_xp:-:sp2:*:*:professional:*:x64:*
cpe:2.3:o:microsoft:windows_xp:-:sp3:*:*:*:*:*:*

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