Vulnerability Intelligence Report
Microsoft Windows Remote Code Execution Vulnerability
CVE-2015-1671
The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1, 4, 4.5, 4.5.1, and 4.5.2; Office 2007 SP3 and 2010 SP2; Live Meeting 2007 Console; Lync 2010; Lync 2010 Attendee; Lync 2013 SP1; Lync Basic 2013 SP1; Silverlight 5 before 5.1.40416.00; and Silverlight 5 Developer Runtime before 5.1.40416.00, allows remote attackers to execute arbitrary code via a crafted TrueType font, aka "TrueType Font Parsing Vulnerability."
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
7.8
HIGH
Exploitability:1.9
Impact Score:5.9
EPSS Probability:54.63%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-19 ↗CWE-19 (via CISA KEV)
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| microsoft | .net_framework | 3.0, 4.0, 4.5, 4.5.1, 4.5.2, 3.5.1, 3.5 |
| microsoft | windows_server_2003 | all |
| microsoft | windows_server_2008 | r2 |
| microsoft | windows_vista | all |
| microsoft | windows_7 | all |
| microsoft | windows_8 | all |
| microsoft | windows_8.1 | all |
| microsoft | windows_server_2012 | r2 |
| microsoft | live_meeting | 2007 |
| microsoft | lync | 2010, 2013 |
| microsoft | silverlight | 5.0 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2015-02-17T00:00:00 |
| Published | 2015-05-13T10:00:00 |
| Patch Date | 2015-05-12 |
| Last Updated | 2025-10-21T23:56:01 |
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