Vulnerability in Microsoft Lync
CVE-2017-0283
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.390 (98.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.390 · newest: 0.390 · change: 0.000
Affected products
- Microsoft Lync — versions 2013
- Microsoft Office — versions 2007, 2010
- Microsoft Office Word Viewer
- Microsoft Silverlight — versions 5.0
- Microsoft Skype For Business — versions 2016
- Microsoft Windows 10 — versions 1511, 1607, 1703
- Microsoft Windows 7
- Microsoft Windows 8.1 — versions rt
- Microsoft Windows Server 2008 — versions r2
- Microsoft Windows Server 2012 — versions r2
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/42234/ (exploit)
- www.securitytracker.com/id/1038675 (vdb-entry)
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0283 (Patch, Mitigation, Vendor Advisory)
- bugs.chromium.org/p/project-zero/issues/detail
- www.securityfocus.com/bid/98920 (VDB Entry, Third Party Advisory, vdb-entry)
- 0patch.blogspot.com/2017/07/0patching-quick-brown-fox-of-cve-2017.html
Frequently asked questions
- What is CVE-2017-0283?
- CVE-2017-0283 is a high-severity vulnerability in Microsoft Lync. CVSS score: 8.8/10. Published 2017-06-15.
- How severe is CVE-2017-0283?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2017-0283 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.