How severe is CVE-2013-3887?

CVE-2013-3887 has a CVSS 2.0 base score of 4.9, rated medium severity.

Is CVE-2013-3887 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3887?

CVE-2013-3887 primarily affects Microsoft Windows 7. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3887?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2013-3887 published?

CVE-2013-3887 was published on 2013-11-13 and last updated on 2026-06-16.

CVE-2013-3887

CVE-2013-3887 is a medium-severity vulnerability in Microsoft Windows 7 with a CVSS 2.0 base score of 4.9. 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-200.

Key facts

Severity: Medium (CVSS 2.0 base score 4.9)
EPSS exploit prediction: 3% (84th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Microsoft Windows 7
Published: 2013-11-13
Last modified: 2026-06-16

Description

The Ancillary Function Driver (AFD) in afd.sys in the kernel-mode drivers in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012 allows local users to obtain sensitive information from kernel memory by leveraging improper copy operations, aka "Ancillary Function Driver Information Disclosure Vulnerability."

Frequently asked questions

What is CVE-2013-3887?: The Ancillary Function Driver (AFD) in afd.sys in the kernel-mode drivers in Microsoft Windows XP SP2, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012 allows local users to obtain sensitive information from kernel memory by leveraging improper copy operations, aka "Ancillary Function Driver Information Disclosure Vulnerability."
How severe is CVE-2013-3887?: CVE-2013-3887 has a CVSS 2.0 base score of 4.9, rated medium severity.
Is CVE-2013-3887 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3887?: CVE-2013-3887 primarily affects Microsoft Windows 7. In total, 8 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3887?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2013-3887 published?: CVE-2013-3887 was published on 2013-11-13 and last updated on 2026-06-16.

References

Affected products (8)

cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2003:*: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_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_xp:-:sp2:x64:*:*:*:*:*

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