CVE-2016-3303
HighPublic exploitThe Windows font library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Office 2007 SP3, Office 2010 SP2, Word Viewer, Skype for Business 2016, Lync 2013 SP1, Lync 2010, Lync 2010 Attendee, and Live Meeting 2007 Console allows remote attackers…
Published Aug 9, 2016 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2016-3303 is a high-severity vulnerability (CVSS 7.8 v3) affecting Live Meeting (Microsoft), Lync (Microsoft), Office (Microsoft) and 5 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 51% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3
7.8
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
51%
Higher than 98.9% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2016-3303 brief as a PDF
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Description
The Windows font library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Office 2007 SP3, Office 2010 SP2, Word Viewer, Skype for Business 2016, Lync 2013 SP1, Lync 2010, Lync 2010 Attendee, and Live Meeting 2007 Console allows remote attackers to execute arbitrary code via a crafted embedded font, aka "Windows Graphics Component RCE Vulnerability," a different vulnerability than CVE-2016-3304.
Affected Products
12 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Live MeetingMicrosoft | 2007 | n/a |
| LyncMicrosoft | 2010, 2013-sp1 | n/a |
| OfficeMicrosoft | 2007-sp3, 2010-sp2 | n/a |
| Skype For BusinessMicrosoft | 2016 | n/a |
| Word ViewerMicrosoft | See advisory | n/a |
Timeline
Publicly disclosed
Aug 9, 2016
Last updated
May 6, 2026
Weakness Type
- CWE-20 Improper Input Validation
References
- exploitExploitDB-40256
- otherMS16-097
- other40256
- other92301
- other1036564
FAQ
Common Questions.
The Windows font library in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Office 2007 SP3, Office 2010 SP2, Word Viewer, Skype for Business 2016, Lync 2013 SP1, Lync 2010, Lync 2010 Attendee, and Live Meeting 2007 Console allows remote attackers to execute arbitrary code via a crafted…
Affected: Live Meeting (Microsoft) versions 2007; Lync (Microsoft) versions 2010, 2013-sp1; Office (Microsoft) versions 2007-sp3, 2010-sp2, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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