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Findings

CVE-2014-4148

Microsoft Windows Remote Code Execution Vulnerability

Published Oct 15, 2014 · corrected/updated Jun 16, 2026 · n/a n/a · evidence confidence very high

win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista 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 allows remote attackers to execute arbitrary code via a crafted TrueType font, as exploited in the wild in October 2014, aka "TrueType Font Parsing Remote Code Execution Vulnerability."

Grounded briefings

Catalog interpretations for three audiences. Each brief cites ingested metadata and the original advisories below. They are not independent research and they do not invent exploit steps.

Executive

CVE-2014-4148 is a high public vulnerability record for n/a n/a. CISA lists it as known exploited. Published remediation guidance: Apply updates per vendor instructions. This summary is a catalog interpretation of the ingested metadata and cites the original advisories below.

System administrator

Identify whether n/a n/a is in your estate, then compare installed versions with the affected ranges. Affected packages or ranges on record: microsoft/windows 7; microsoft/windows 8; microsoft/windows 8.1; microsoft/windows rt. Published remediation guidance: Apply updates per vendor instructions. Prefer the vendor or distribution advisory linked in Sources before changing production systems. This is a catalog interpretation, not a runbook.

Security analyst

Signals on file: CVSS 8.8, EPSS 59.9%. CISA lists it as known exploited. Weakness classes: CWE-94. Sources contributing to this record: cisa_kev, cve_org, epss, nvd. Public exploit references, when present, are outbound links only and are not proof of active exploitation. This is a catalog interpretation of stored metadata.

Exploitation and remediation

  • Exploitation evidence

    Confirmed in CISA KEV since May 25, 2022. Listed in the CISA Known Exploited Vulnerabilities catalog.

  • Patch and remediation

    Apply updates per vendor instructions. CISA due date Jun 15, 2022.

  • Safe detection guidance

    Compare installed versions with the affected ranges below and verify the advisory from the original publisher. This site stores metadata and outbound links only; it does not ship exploit code or proof-of-concept payloads.

Technology hubs

Windows

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 15, 2014 · Catalog

    Detected

    win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista 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 allows remote attackers to execute arbitrary code via a crafted TrueType font, as exploited in the wild in October 2014, aka "TrueType Font Parsing Remote Code Execution

  2. May 25, 2022 · CISA KEV

    Known exploited

    Apply updates per vendor instructions.

  3. Jun 15, 2022 · CISA KEV

    Remediation due

    Apply updates per vendor instructions.

  4. Jun 16, 2026 · Catalog

    Updated

    win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista 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 allows remote attackers to execute arbitrary code via a crafted TrueType font, as exploited in the wild in October 2014, aka "TrueType Font Parsing Remote Code Execution

Affected

  • cpe microsoft/windows 7version unspecified
  • cpe microsoft/windows 8version unspecified
  • cpe microsoft/windows 8.1version unspecified
  • cpe microsoft/windows rtversion unspecified
  • cpe microsoft/windows rt 8.1version unspecified
  • cpe microsoft/windows server 2003version unspecified
  • cpe microsoft/windows server 2008version unspecified
  • cpe microsoft/windows server 2008r2
  • vendor Microsoft Windowsversion unspecified
  • vendor n/a n/aversion unspecified

Sources

  • CISA KEVConfirmed exploitationCVE-2014-4148

    A remote code execution vulnerability exists when the Windows kernel-mode driver improperly handles TrueType fonts.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2014-4148

    win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista 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 allows remote attackers to execute arbitrary code

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2014-4148

    30-day exploitation probability 59.9%

    first.org
  • NIST NVDVulnerability recordCVE-2014-4148

    win32k.sys in the kernel-mode drivers in Microsoft Windows Server 2003 SP2, Windows Vista 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 allows remote attackers to execute arbitrary code

    nvd.nist.gov

References