vciy

CVE-2016-3309

INDEX BUILT · 2026-09-20

No source can show you its own past. This one can.

Print this page to keep the view as it stands on this date. Everything hidden behind a disclosure opens, and every receipt prints with its value.

The kernel-mode drivers in Microsoft Windows Vista SP2; Windows Server 2008 SP2 and R2 SP1; Windows 7 SP1; Windows 8.1…

CVE-2016-33093 of 4 sources documented this
71

rank 71 = 40 + 20 + 1 + 4 + 6

rank@v1 · act now

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.20467 · CISA KEV listed  ·  without this subject the record ranks 31

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.8, from NVD  ·  without this subject the record ranks 51

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-10-22  ·  without this subject the record ranks 70

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 67

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 65

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$1.02Mover the next 30 days, if this record is yours
Movement-$189,000on 2026-04-13, the last material move, 5 months before this reading
Basisassumeda published average, not your estate

$1.02M = $4.99M incident cost x 1 exposure x 0.20467 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.20467EPSSKEV · LISTED
Severity7.8 HIGHreceipt
Harmtotal loss · ransomware-linkedreceipt
Exploitationransomware use knownreceipt
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 94 days at 0.20, as of 2026-09-17. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Check a version against this record

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

Watch this record

Matches your own product list against every record this index holds, and tells you when one of them moves.

What counts as a move

Set up a watchlist (needs a Practitioner account)

Record your call

Keep your verdict, your reason and the evidence together. The record takes its date when you save it.

AcceptDeferPatch by…Not affectedMitigated

Choose your verdict, then sign in or use an email link. Your first 100 records are free. Evidence is frozen when the record is created.

Private to your organization unless you share it. Put the proof link in your ticket so a reviewer can inspect the basis for your call. See how decision records work.

Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachneeds local access · low privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD's vectorreceipt
Weakness classNo CWE mapping in held sources.
Ransomware campaign useKnown (CISA)receipt

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

Fixed inNo fix version in held sources, as the index stood on 17 Sep 2026.
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.
CISA remediation statusoverdue since 2022-04-05receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV2044 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Ransomware campaign use known, 2022-03-15.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 1 public repository2017-10-06receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2022-03-15receipt
  • RUNG 4Ransomware campaign use known2022-03-15receipt

Authority who says so

CVSS, NVD7.8 HIGHreceipt
Exploit probability0.20467 · top 3% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes56 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Named in the CPE rangesMicrosoft windows serverreceipt
Published rangesmicrosoft windows server 2008 r2; microsoft windows server 2012 r2receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

Did this affect your environment?Answering needs an account.

What it is stated by the CNA

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. receipt

NVD's analysis a second authority

severity
7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
affected versions
microsoft windows server 2008 r2; microsoft windows server 2012 r2
also scored by
7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

check it yourself docs.microsoft.com exploit-db.com securitytracker.com securityfocus.com receipt

Dated events

2022-03-15Added to CISA KEV2022-04-05CISA remediation due2024-12-17EPSS moved 0.00 to 0.762026-06-15EPSS moved 0.43 to 0.21

Movement the material steps

4 Feb 20220.01961
7 Mar 20235.3e-4 · scoring model v2023.03.01
17 Dec 20240.75690 · crossed 0.10 and 0.50
17 Mar 20250.47362 · crossed 0.50 · scoring model v2025.03.14
18 Mar 20250.50225 · crossed 0.50
19 Mar 20250.70776
20 Mar 20250.50225
27 Mar 20250.70776
28 Mar 20250.50225
29 Mar 20250.70776
30 Mar 20250.50225
12 Apr 20250.47724 · crossed 0.50
30 Jul 20250.51566 · crossed 0.50
8 Nov 20250.61725
18 Jan 20260.45234 · crossed 0.50
6 Apr 20260.50049 · crossed 0.50
13 Apr 20260.4627 · crossed 0.50
15 Jun 20260.20625 · scoring model v2026.06.15
17 Sep 20260.20467
Show all 42 observations
4 Feb 20220.01961
7 Mar 20235.3e-4
8 Mar 20230.00053
13 Mar 20230.00062
13 Jul 20230.00101
22 Aug 20230.00140
2 Oct 20230.00084
10 Nov 20230.00060
20 Jan 20240.00056
17 Jul 20240.00423
17 Dec 20240.75690
17 Mar 20250.47362
18 Mar 20250.50225
19 Mar 20250.70776
20 Mar 20250.50225
27 Mar 20250.70776
28 Mar 20250.50225
29 Mar 20250.70776
30 Mar 20250.50225
12 Apr 20250.47724
28 Jun 20250.47998
6 Jul 20250.47724
21 Jul 20250.49455
30 Jul 20250.51566
24 Sep 20250.53849
22 Oct 20250.58798
8 Nov 20250.61725
18 Nov 20250.60501
18 Jan 20260.45234
25 Jan 20260.44641
25 Feb 20260.45234
10 Mar 20260.42984
21 Mar 20260.4627
24 Mar 20260.46861
6 Apr 20260.50049
13 Apr 20260.4627
23 Apr 20260.46776
11 May 20260.46236
13 May 20260.44869
2 Jun 20260.43241
15 Jun 20260.20625
17 Sep 20260.20467

42 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.20467Published2016-08-09Public PoC2017-10-06CISA KEV2022-03-15Index as of2026-09-17

Listed by CISA 2044 days after it published and the record had been public for 10 years, 1 month when this index was last written.

Published 2016-08-09 receipt · Public PoC 2017-10-06 receipt · CISA KEV 2022-03-15 receipt · Index as of 2026-09-17 derived

Siblings and hubs

Records related to this one

Browse the index from here

These are index-wide views, not findings about CVE-2016-3309.

What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.