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CVE-2017-0283

• Severity: high (CVSS 8.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 39.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-06-15 · updated 2026-06-17

Description

Uniscribe in Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT 8.1, Windows 10 Gold, 1511, 1607, Windows Server 2016, Microsoft Office 2007 SP3, Microsoft Office 2010 SP2, Microsoft Office Word Viewer, Microsoft Lync 2013 SP1, Skype for Business 2016, Microsoft Silverlight 5 Developer Runtime when installed on Microsoft Windows, and Microsoft Silverlight 5 when installed on Microsoft Windows allows a remote code execution vulnerability due to the way it handles objects in memory, aka "Windows Uniscribe Remote Code Execution Vulnerability". This CVE ID is unique from CVE-2017-8528.

Affected products

• Microsoft Lync Server: 2013-sp1
• Microsoft Office: 2007-sp3, 2010-sp2
• Microsoft Office Word Viewer: all versions
• Microsoft Silverlight: 5.0
• Microsoft Skype for Business Server 2019 CU2: 2016
• Microsoft Windows 10 Version 1607: 1511, 1607, 1703
• Microsoft Windows 7: all versions
• Microsoft Windows 8.1: rt
• Microsoft Windows Server 2008: r2-sp1
• Microsoft Windows Server 2012: r2
• Microsoft Windows Server 2016: all versions

References

• http://www.securityfocus.com/bid/98920
• http://www.securitytracker.com/id/1038675
• https://0patch.blogspot.com/2017/07/0patching-quick-brown-fox-of-cve-2017.html
• https://bugs.chromium.org/p/project-zero/issues/detail?id=1198
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0283
• https://www.exploit-db.com/exploits/42234/
• http://www.securityfocus.com/bid/98920
• http://www.securitytracker.com/id/1038675
• https://0patch.blogspot.com/2017/07/0patching-quick-brown-fox-of-cve-2017.html
• https://bugs.chromium.org/p/project-zero/issues/detail?id=1198
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0283
• https://www.exploit-db.com/exploits/42234/

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