CVE-2016-7256
HighExploitedPublic exploitatmfd.dll in the Windows font library in Microsoft Windows Vista SP2, 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, and 1607, and Windows Server 2016 allows remote attackers to execute…
Published Nov 10, 2016 · Updated Apr 22, 2026
Key Facts
Patch immediately- CVE-2016-7256 is a high-severity vulnerability (CVSS 8.8 v3.1) affecting Windows 10 1507 (Microsoft), Windows 10 1511 (Microsoft), Windows 10 1607 (Microsoft) and 7 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 8, 2016. Public exploit code is available.
- EPSS estimates a 65% 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 listed as exploited in the wild.
CVSS v3.1
8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
65%
Higher than 99.2% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2016-7256 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
Description
atmfd.dll in the Windows font library in Microsoft Windows Vista SP2, 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, and 1607, and Windows Server 2016 allows remote attackers to execute arbitrary code via a crafted web site, aka "Open Type Font Remote Code Execution Vulnerability."
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | May 25, 2022 | Jun 15, 2022 | Not reported |
| Industry KEV feed | Nov 8, 2016 | Jun 15, 2022 | Not reported |
| CIRCL KEV | May 25, 2022 | Jun 15, 2022 | Not reported |
| ENISA EUVD | May 25, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
12 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10 1507Microsoft | See advisory | n/a |
| Windows 10 1511Microsoft | See advisory | n/a |
| Windows 10 1607Microsoft | See advisory | n/a |
| Windows 7Microsoft | See advisory | n/a |
| Windows 8.1Microsoft | See advisory | n/a |
Timeline
Added to Industry KEV feed
Nov 8, 2016
Publicly disclosed
Nov 10, 2016
Added to CISA KEV
May 25, 2022
Added to CIRCL KEV
May 25, 2022
Added to ENISA EUVD
May 25, 2022
Last updated
Apr 22, 2026
References
- advisory94156
- advisory1037243
- patchMS16-132
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
atmfd.dll in the Windows font library in Microsoft Windows Vista SP2, 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, and 1607, and Windows Server 2016 allows remote attackers to execute arbitrary code via a crafted web site, aka "…
Affected: Windows 10 1507 (Microsoft); Windows 10 1511 (Microsoft); Windows 10 1607 (Microsoft), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Nov 8, 2016.
Yes. It was added on May 25, 2022 with a federal remediation due date of Jun 15, 2022.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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