CVE-2016-3309

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.205 · 98 %ileexploit · PoCEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 2 exploits · PoC

Likely / severe?

20.5% (98th) EPSS

CVSS 7.2 · high

Is it mine?

22 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2022-03-15remediate by 2022-04-05

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-22

Microsoft Windows Kernel Privilege Escalation Vulnerability

The kernel-mode drivers 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; and Windows 10 Gold, 1511, and 1607 allow local users to gain privileges via a crafted application, aka "Win32k Elevation of Privilege Vulnerability," a different vulnerability than CVE-2016-3308, CVE-2016-3310, and CVE-2016-3311.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Csecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-264US

exploits (2)

Public proof-of-concept and weaponised exploit code.

EDB-42960Microsoft Windows 10 RS2 (x64) - 'win32kfull!bFill' Pool OverflowPoC · exploit_db
siberas/CVE-2016-3309_ReloadedExploits for the win32kfull!bFill vulnerability on Win10 x64 RS2 using Bitmap or Palette techniquesPoC · poc_in_github

affected products (22)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Microsoft Corp Windows 10all versionsfstec_bduRU
Microsoft Corp Windows 10 RTMall versionsfstec_bduRU
Microsoft Corp Windows 7 Service Pack 1all versionsfstec_bduRU
Microsoft Corp Windows 8.1all versionsfstec_bduRU
Microsoft Corp Windows RT 8.1all versionsfstec_bduRU
Microsoft Corp Windows Server 2008 R2 Service Pack 1all versionsfstec_bduRU
Microsoft Corp Windows Server 2008 Service Pack 2all versionsfstec_bduRU
Microsoft Corp Windows Server 2012 Goldall versionsfstec_bduRU
Microsoft Corp Windows Server 2012 R2all versionsfstec_bduRU
Microsoft Corp Windows Vista Service Pack 2all versionsfstec_bduRU
microsoft windows 10 1507all versionsnvdUScpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:*
microsoft windows 10 1511all versionsnvdUScpe:2.3:o:microsoft:windows_10_1511:*:*:*:*:*:*:*:*
microsoft windows 10 1607all versionsnvdUScpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:*
microsoft windows 7all versionsnvdUScpe:2.3:o:microsoft:windows_7:*:*:*:*:*:*:*:*
microsoft windows 8.1all versionsnvdUScpe:2.3:o:microsoft:windows_8.1:*:*:*:*:*:*:*:*
microsoft windows rt 8.1all versionsnvdUScpe:2.3:o:microsoft:windows_rt_8.1:*:*:*:*:*:*:*:*
microsoft windows server 2008all versionsnvdUScpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
microsoft windows server 2008= r2nvdUScpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
microsoft windows server 2012all versionsnvdUScpe:2.3:o:microsoft:windows_server_2012:*:*:*:*:*:*:*:*

showing 20 of 22

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2016-08-09modified 2026-06-17

references (10)

External citations — patches, advisories, analysis.

http://technet.microsoft.com/security/bulletin/MS16-098 cnnvd
http://www.securityfocus.com/bid/92297 enisa_euvd
http://www.securitytracker.com/id/1036572 enisa_euvd
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-098 enisa_euvd
https://www.exploit-db.com/exploits/42960/enisa_euvd
http://www.securityfocus.com/bid/92297Broken LinkThird Party AdvisoryVDB Entrynvd
http://www.securitytracker.com/id/1036572Broken LinkThird Party AdvisoryVDB Entrynvd
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-098PatchVendor Advisorynvd

scry

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