How severe is CVE-2014-4115?

CVE-2014-4115 has a CVSS 2.0 base score of 7.2, rated high severity.

Is CVE-2014-4115 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-4115?

CVE-2014-4115 primarily affects Microsoft Windows Server 2003. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-4115?

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-2014-4115 published?

CVE-2014-4115 was published on 2014-10-15 and last updated on 2026-06-17.

CVE-2014-4115

CVE-2014-4115 is a high-severity vulnerability in Microsoft Windows Server 2003 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-399.

Key facts

Severity: High (CVSS 2.0 base score 7.2)
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-399
Affected product: Microsoft Windows Server 2003
Published: 2014-10-15
Last modified: 2026-06-17

Description

fastfat.sys (aka the FASTFAT driver) in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 does not properly allocate memory, which allows physically proximate attackers to execute arbitrary code or cause a denial of service (reserved-memory write) by connecting a crafted USB device, aka "Microsoft Windows Disk Partition Driver Elevation of Privilege Vulnerability."

Frequently asked questions

What is CVE-2014-4115?: fastfat.sys (aka the FASTFAT driver) in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Vista SP2, and Server 2008 SP2 does not properly allocate memory, which allows physically proximate attackers to execute arbitrary code or cause a denial of service (reserved-memory write) by connecting a crafted USB device, aka "Microsoft Windows Disk Partition Driver Elevation of Privilege Vulnerability."
How severe is CVE-2014-4115?: CVE-2014-4115 has a CVSS 2.0 base score of 7.2, rated high severity.
Is CVE-2014-4115 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-4115?: CVE-2014-4115 primarily affects Microsoft Windows Server 2003. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-4115?: 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-2014-4115 published?: CVE-2014-4115 was published on 2014-10-15 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2008:*:sp2:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_vista:*:sp2:*:*:*:*:*:*

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