How severe is CVE-2013-3907?

CVE-2013-3907 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2013-3907 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2013-3907?

CVE-2013-3907 primarily affects Microsoft Windows 7. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2013-3907?

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-2013-3907 published?

CVE-2013-3907 was published on 2013-12-11 and last updated on 2026-06-16.

CVE-2013-3907

CVE-2013-3907 is a high-severity vulnerability in Microsoft Windows 7 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% (77th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Microsoft Windows 7
Published: 2013-12-11
Last modified: 2026-06-16

Description

portcls.sys in the kernel-mode drivers in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT allows local users to gain privileges via a crafted application, aka "Port-Class Driver Double Fetch Vulnerability."

Frequently asked questions

What is CVE-2013-3907?: portcls.sys in the kernel-mode drivers in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows Server 2012, and Windows RT allows local users to gain privileges via a crafted application, aka "Port-Class Driver Double Fetch Vulnerability."
How severe is CVE-2013-3907?: CVE-2013-3907 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2013-3907 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (77th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2013-3907?: CVE-2013-3907 primarily affects Microsoft Windows 7. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2013-3907?: 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-2013-3907 published?: CVE-2013-3907 was published on 2013-12-11 and last updated on 2026-06-16.

References

https://docs.microsoft.com/en-us/security-updates/securitybulletins/2013/ms13-101

Affected products (10)

cpe:2.3:o:microsoft:windows_7:*:sp1:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_7:*:sp1:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8:-:-:x64:*:*:*:*:*
cpe:2.3:o:microsoft:windows_8:-:-:x86:*:*:*:*:*
cpe:2.3:o:microsoft:windows_rt:-:*:*:*:*:*:*:*
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_server_2012:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*

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