vciy

CVE-2022-35803

INDEX BUILT · 2026-09-20

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Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVE-2022-358034 of 4 sources documented this
33

rank 33 = 6 + 20 + 0 + 7 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.23818  ·  without this subject the record ranks 27

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.8, from the CNA  ·  without this subject the record ranks 13

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 33

How much of the world it touches

NVD CPE configurations

7 products in the CPE ranges  ·  without this subject the record ranks 26

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 33

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$1.19Mover the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$1.19M = $4.99M incident cost x 1 exposure x 0.23818 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

0.23818EPSSNOT IN KEVas of 2026-09-20
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementthreshold crossedreceipt
RISING10Risen from 0.00885 to 0.23818 across 34 observations. 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

Running Microsoft Windows 10 Version 21H2? Check your version

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.

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Record your call

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AcceptDeferPatch by…Not affectedMitigated

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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 · the CNA's vectorreceipt
Weakness classNo CWE mapping in held sources.

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in10.0.19044.2006; 10.0.19043.2006; 10.0.22000.978; 10.0.17763.3406; 10.0.20348.1006; 10.0.19042.2006; 10.0.10240.19444; 6.1.7601.26115; 6.0.6003.21666…receipt
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.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.8 HIGHreceipt
Exploit probability0.23818 · top 2% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes34 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Windows 10 Version 21H2; Microsoft Windows 10 Version 21H1; Microsoft Windows 11 version 21H2; Microsoft Windows 10 Version 1809; Microsoft Windows Server 2022…receipt
Published rangesmicrosoft windows 10 20h2; microsoft windows 10 21h1; microsoft windows 10 21h2; microsoft windows 10 1607receipt
Show all 7 published ranges
microsoft windows 10 20h2
microsoft windows 10 21h1
microsoft windows 10 21h2
microsoft windows 10 1607
microsoft windows 10 1809
microsoft windows server 2008 r2
microsoft windows server 2012 r2
Fixed in10.0.19044.2006; 10.0.19043.2006; 10.0.22000.978; 10.0.17763.3406; 10.0.20348.1006; 10.0.19042.2006; 10.0.10240.19444; 6.1.7601.26115; 6.0.6003.21666…receipt

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.

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What it is stated by the CNA

Windows Common Log File System Driver Elevation of Privilege Vulnerability receipt

NVD's analysis a second authority

affected versions
microsoft windows 10 20h2; microsoft windows 10 21h1; microsoft windows 10 21h2; and 4 more, listed in full below
also scored by
[email protected] 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

check it yourself msrc.microsoft.com receipt

Movement the material steps

14 Sep 20220.00885
7 Mar 20234.8e-4 · scoring model v2023.03.01
17 Mar 20250.01549 · scoring model v2025.03.14
15 Jun 20260.23818 · crossed 0.10 · scoring model v2026.06.15

This score more than doubled inside 72 hours. Both observations are in the full history below.

Show all 34 observations
14 Sep 20220.00885
17 Sep 20220.0115
7 Mar 20234.8e-4
8 Mar 20230.00048
12 Apr 20230.00047
8 May 20230.00095
4 Jun 20230.00101
17 Jun 20230.00095
8 Jul 20230.00048
10 Jul 20230.00050
21 Jul 20230.00048
14 Aug 20230.00052
26 Aug 20230.00048
16 Oct 20230.00071
28 Oct 20230.00043
17 Dec 20240.00067
17 Mar 20250.01549
19 Mar 20250.0137
29 Mar 20250.03233
30 Mar 20250.0137
24 Apr 20250.01157
26 Jun 20250.01477
10 Jul 20250.01574
14 Sep 20250.01494
15 Sep 20250.01771
1 Oct 20250.0179
27 Oct 20250.01771
28 Oct 20250.0179
18 Nov 20250.00644
21 Nov 20250.0179
27 Dec 20250.01771
28 Dec 20250.0179
30 Mar 20260.01618
15 Jun 20260.23818

34 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 0.23818Published2022-09-13Index as of2026-06-15

Exploit probability more than doubled between 2025-11-18 and 2025-11-21 (0.00644 → 0.0179) and the record had been public for 3 years, 9 months when this index was last written.

Published 2022-09-13 receipt · Index as of 2026-06-15 derived

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