How severe is CVE-2013-3881?

CVE-2013-3881 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2013-3881 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3881?

CVE-2013-3881 primarily affects Microsoft Windows 7. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3881?

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-2013-3881 published?

CVE-2013-3881 was published on 2013-10-09 and last updated on 2026-06-16.

CVE-2013-3881

CVE-2013-3881 is a high-severity vulnerability in Microsoft Windows 7 with a CVSS 2.0 base score of 7.2. Its EPSS exploit-prediction score of 15% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-399.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 15% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Microsoft Windows 7
Published: 2013-10-09
Last modified: 2026-06-16

Description

win32k.sys in the kernel-mode drivers in Microsoft Windows 7 SP1 and Windows Server 2008 R2 SP1 allows local users to gain privileges via a crafted application, aka "Win32k NULL Page Vulnerability."

Frequently asked questions

What is CVE-2013-3881?: win32k.sys in the kernel-mode drivers in Microsoft Windows 7 SP1 and Windows Server 2008 R2 SP1 allows local users to gain privileges via a crafted application, aka "Win32k NULL Page Vulnerability."
How severe is CVE-2013-3881?: CVE-2013-3881 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2013-3881 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 15% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3881?: CVE-2013-3881 primarily affects Microsoft Windows 7. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3881?: 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-2013-3881 published?: CVE-2013-3881 was published on 2013-10-09 and last updated on 2026-06-16.

References

Affected products (2)

cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*

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