vciy

CVE-2023-24949

INDEX BUILT · 2026-09-20

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Windows Kernel Elevation of Privilege Vulnerability

CVE-2023-249494 of 4 sources documented this
33

rank 33 = 6 + 20 + 1 + 6 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.24622  ·  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

rose on 2025-11-21  ·  without this subject the record ranks 32

How much of the world it touches

NVD CPE configurations

6 products in the CPE ranges  ·  without this subject the record ranks 27

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$1.23Mover 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

$1.23M = $4.99M incident cost x 1 exposure x 0.24622 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

0.24622EPSSNOT IN KEVas of 2026-09-20
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementthreshold crossedreceipt
RISING10Risen from 0.00043 to 0.24622 across 37 observations. arc-rules@v1

Foresight · where to check next

Microsoft WindowsMicrosoft OfficeCVE-2013-2596CVE-2011-1823Qualcomm, Inc.The Linux24949

This record is one instance of CWE-190, integer overflow or wraparound. The index holds 3586 prior instances of this class, 21 KEV-listed. The nearest of its KEV-listed records are drawn beside this. taxonomy@v1

Full pattern panel

Prior records in this weakness class. Each is its own record, dated and receipted.
Color is a claim, not decoration:the hostile worldthe defenseno signalspoke length is how much of the record matches, not how bad it is

Running Microsoft Windows 10 Version 1809? Check your version

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Harm, if it fires from the vector and the weakness

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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 classCWE-190 Integer Overflow or Wraparoundreceipt
Published consequencesCWE-190: Availability: DoS: Crash, Exit, or Restart, DoS: Resource Consumption (Memory), DoS: Instability; Integrity: Modify Memory; Confidentiality, Availability, Access Control: Execute…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in10.0.17763.4377; 10.0.20348.1726; 10.0.19042.2965; 10.0.22000.1936; 10.0.19044.2965; 10.0.22621.1702; 10.0.19045.2965receipt
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 probability0.24622 · top 2% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes37 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Windows 10 Version 1809; Microsoft Windows Server 2019; Microsoft Windows Server 2019 (Server Core installation); Microsoft Windows Server 2022; Microsoft Windows 10 Version 20H2…receipt
Published rangesmicrosoft windows 10 1809 < 10.0.17763.4377; microsoft windows 10 20h2 < 10.0.19042.2965; microsoft windows 10 21h2 < 10.0.19044.2965; microsoft windows 10 22h2 < 10.0.19045.2965receipt
Show all 6 published ranges
microsoft windows 10 1809 < 10.0.17763.4377
microsoft windows 10 20h2 < 10.0.19042.2965
microsoft windows 10 21h2 < 10.0.19044.2965
microsoft windows 10 22h2 < 10.0.19045.2965
microsoft windows 11 21h2 < 10.0.22000.1936
microsoft windows 11 22h2 < 10.0.22000.1702
Fixed in10.0.17763.4377; 10.0.20348.1726; 10.0.19042.2965; 10.0.22000.1936; 10.0.19044.2965; 10.0.22621.1702; 10.0.19045.2965receipt

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 privilegesMicrosoft Windows Server 2019CWE-190 integer overflowFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-190data compromise

What it is stated by the CNA

Windows Kernel Elevation of Privilege Vulnerability receipt

NVD's analysis a second authority

weakness
CWE-190
affected versions
microsoft windows 10 1809 < 10.0.17763.4377; microsoft windows 10 20h2 < 10.0.19042.2965; microsoft windows 10 21h2 < 10.0.19044.2965; and 3 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

Dated events

2025-04-15EPSS moved 0.01 to 0.082026-06-15EPSS moved 0.07 to 0.25

Movement the material steps

10 May 20230.00043
17 Mar 20250.01092 · scoring model v2025.03.14
15 Jun 20260.24622 · 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 37 observations
10 May 20230.00043
11 May 20230.00046
16 May 20230.00048
8 Jul 20230.00083
11 Jul 20230.00094
14 Jul 20230.00048
11 Aug 20230.00052
16 Aug 20230.00051
24 Aug 20230.00059
11 Sep 20230.00068
30 Oct 20230.00084
28 Jan 20240.00089
10 Feb 20240.00084
8 Apr 20240.00090
20 Apr 20240.00084
10 Jun 20240.00119
22 Jun 20240.00071
26 Aug 20240.00067
22 Sep 20240.00055
29 Nov 20240.00061
17 Dec 20240.00049
25 Feb 20250.00070
17 Mar 20250.01092
19 Mar 20250.01109
25 Mar 20250.01453
29 Mar 20250.03406
30 Mar 20250.01453
15 Apr 20250.07901
18 Nov 20250.01453
21 Nov 20250.07901
18 Dec 20250.06763
5 Mar 20260.07174
10 May 20260.06213
21 May 20260.05397
22 May 20260.06009
24 May 20260.06537
15 Jun 20260.24622

37 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 0.24622Published2023-05-09Index as of2026-06-15

Exploit probability more than doubled between 2025-11-18 and 2025-11-21 (0.01453 → 0.07901) and the record had been public for 3 years, 1 month when this index was last written.

Published 2023-05-09 receipt · Index as of 2026-06-15 derived

The pattern, elsewhere

This record is one instance of CWE-190, integer overflow or wraparound. The index holds 3586 prior instances of this class, 21 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2024-38080 · Microsoft Windows Server 2022matches 9 of 9KEV listed · 2024receipt
CVE-2023-21823 · Microsoft Office for Androidmatches 9 of 9KEV listed · 2023receipt
CVE-2013-2596matches 8 of 8KEV listed · 2013receipt
CVE-2011-1823matches 8 of 8KEV listed · 2011receipt
CVE-2026-21385 · Qualcomm, Inc. Snapdragonmatches 8 of 9KEV listed · 2026receipt
CVE-2018-14634 · The Linux Foundation kernelmatches 8 of 9KEV listed · 2018receipt

"Matches n of m" counts the attributes the two records can both be compared on: the CVSS metrics they share a version of, any weakness class beyond this one, and the vendor. fit-rules@v1

3586 records in this class held. The six above are drawn from the ones CISA has listed as exploited, ranked by how much of the record matches this one. That is why every one of them is KEV-listed: the pool is, so the colour on those spokes says nothing the pool has not already said.

No curated product neighbourhood is held for this product, so the records above are the nearest this index can name. The neighbourhood table covers a small set of products and is extended by hand.

Siblings and hubs

Records related to this one

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What usually comes next

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