vciy

CVE-2024-43520

INDEX BUILT · 2026-09-20

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Windows Kernel Denial of Service Vulnerability

CVE-2024-435204 of 4 sources documented this
22

rank 22 = 0 + 13 + 0 + 9 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.00961  ·  without this subject the record ranks 22

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 5.0, from the CNA  ·  without this subject the record ranks 9

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 22

How much of the world it touches

NVD CPE configurations

15 products in the CPE ranges  ·  without this subject the record ranks 13

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 22

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$29,400over 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

$29,400 = $4.99M incident cost x 0.6121449559255632 exposure x 0.00961 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

0.00961EPSSNOT IN KEVas of 2026-09-20
Severity5 MEDIUMreceipt
Harmpartial impactreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2024-10-09, 644 days at 0.01, as of 2026-07-15. 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 1507? 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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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 · user interaction required · low attack complexityreceipt
ImpactComplete availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-476 NULL Pointer Dereferencereceipt
Published consequencesCWE-476: Availability: DoS: Crash, Exit, or Restart; Integrity, Confidentiality: Execute Unauthorized Code or Commands, Read Memory, Modify Memory[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in10.0.10240.20796; 10.0.14393.7428; 10.0.17763.6414; 10.0.19044.5011; 10.0.19045.5011; 10.0.22000.3260; 10.0.22621.4317; 10.0.22631.4317; 10.0.26100.2033…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 CNA5 MEDIUMreceipt
Exploit probability0.00961 · top 40% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes27 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Windows 10 Version 1507; Microsoft Windows 10 Version 1607; Microsoft Windows 10 Version 1809; Microsoft Windows 10 Version 21H2; Microsoft Windows 10 Version 22H2…receipt
Published rangesmicrosoft windows 10 1507 < 10.0.10240.20796; microsoft windows 10 1607 < 10.0.14393.7428; microsoft windows 10 1809 < 10.0.17763.6414; microsoft windows 10 21h2 < 10.0.19044.5011receipt
Show all 15 published ranges
microsoft windows 10 1507 < 10.0.10240.20796
microsoft windows 10 1607 < 10.0.14393.7428
microsoft windows 10 1809 < 10.0.17763.6414
microsoft windows 10 21h2 < 10.0.19044.5011
microsoft windows 10 22h2 < 10.0.19045.5011
microsoft windows 11 21h2 < 10.0.22000.3260
microsoft windows 11 22h2 < 10.0.22621.4317
microsoft windows 11 23h2 < 10.0.22631.4317
microsoft windows 11 24h2 < 10.0.26100.2033
microsoft windows server 2008 r2
microsoft windows server 2012 r2
microsoft windows server 2016 < 10.0.14393.7428
microsoft windows server 2019 < 10.0.17763.6414
microsoft windows server 2022 < 10.0.20348.2762
microsoft windows server 2022 23h2 < 10.0.25398.1189
Fixed in10.0.10240.20796; 10.0.14393.7428; 10.0.17763.6414; 10.0.19044.5011; 10.0.19045.5011; 10.0.22000.3260; 10.0.22621.4317; 10.0.22631.4317; 10.0.26100.2033…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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Attack path

Local accessrequires low privileges, requires…Microsoft Windows Server 2012CWE-476 NULL pointer dereferenceAvailability lossA:Hexploits CWE-476data compromise

What it is stated by the CNA

Windows Kernel Denial of Service Vulnerability receipt

NVD's analysis a second authority

weakness
CWE-476
affected versions
microsoft windows 10 1507 < 10.0.10240.20796; microsoft windows 10 1607 < 10.0.14393.7428; microsoft windows 10 1809 < 10.0.17763.6414; and 12 more, listed in full below
also scored by
[email protected] 5 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

check it yourself msrc.microsoft.com receipt

Movement the material steps

9 Oct 20240.00043
17 Mar 20250.00097 · scoring model v2025.03.14
15 Jun 20260.00921 · scoring model v2026.06.15
15 Jul 20260.00961

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

Show all 27 observations
9 Oct 20240.00043
18 Oct 20240.00195
17 Mar 20250.00097
18 Mar 20250.00139
19 Mar 20250.00142
25 Mar 20250.00151
29 Mar 20250.00349
30 Mar 20250.00151
15 Apr 20250.00096
4 May 20250.00103
13 Jun 20250.00105
24 Jun 20250.00197
4 Jul 20250.00205
25 Jul 20250.00276
4 Aug 20250.0039
7 Sep 20250.00405
21 Sep 20250.00421
2 Oct 20250.00487
14 Oct 20250.00574
7 Nov 20250.00621
16 Nov 20250.00304
18 Nov 20250.01323
21 Nov 20250.00304
1 Dec 20250.00323
5 Dec 20250.00449
15 Jun 20260.00921
15 Jul 20260.00961

27 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 0.00961Published2024-10-08Index as of2026-07-15

Exploit probability more than doubled between 2025-11-16 and 2025-11-18 (0.00304 → 0.01323) and the record had been public for 1 year, 9 months when this index was last written.

Published 2024-10-08 receipt · Index as of 2026-07-15 derived

Siblings and hubs

Records related to this one

Its defect family

microsoft windows 10 version 1507

Of the 9 records in this family, this is the only one holding a stated fix version: 10.0.10240.20796; 10.0.14393.7428; 10.0.17763.6414; 10.0.190.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

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What usually comes next

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