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Vulnerability Intelligence

CVE-2016-3303

HighPublic exploit

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…

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
ProductAffected versionsFixed in
Live MeetingMicrosoft2007n/a
LyncMicrosoft2010, 2013-sp1n/a
OfficeMicrosoft2007-sp3, 2010-sp2n/a
Skype For BusinessMicrosoft2016n/a
Word ViewerMicrosoftSee advisoryn/a
3 more affected products in the full CVE brief

Timeline

  1. Publicly disclosed

    Aug 9, 2016

  2. Last updated

    May 6, 2026

Weakness Type

  • CWE-20 Improper Input Validation

References

FAQ

Common Questions.

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