vciy

CVE-2024-38178

INDEX BUILT · 2026-09-20

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Scripting Engine Memory Corruption Vulnerability

CVE-2024-381784 of 4 sources documented this
76

rank 76 = 40 + 19 + 2 + 9 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.41380 · CISA KEV listed  ·  without this subject the record ranks 36

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 7.5, from the CNA  ·  without this subject the record ranks 57

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 74

How much of the world it touches

NVD CPE configurations

14 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 70

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.06Mover the next 30 days, if this record is yours
Movement-$2.36Mon 2025-04-15, the last material move, 1 year, 4 months before this reading
Basisassumeda published average, not your estate

$2.06M = $4.99M incident cost x 1 exposure x 0.4138 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

0.4138EPSSKEV · LISTED
Severity7.5 HIGHreceipt
Harmtotal lossreceipt
Exploitationin the wild · KEVreceipt
Defensefix version namedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 81 days at 0.41, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

MicrosoftMicrosoft WindowsApple SafariGoogle ChromeApple iOS38178

This record is one instance of CWE-843, access of resource using incompatible type ('type confusion'). The index holds 923 prior instances of this class, 41 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 11 Version 24H2? 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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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no privileges required · user interaction required · high attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-843 Access of Resource Using Incompatible Type ('Type Confusion')receipt
Published consequencesCWE-843: Availability, Integrity, Confidentiality: Read Memory, Modify Memory, Execute Unauthorized Code or Commands, DoS: Crash, Exit, or Restart[email protected]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in10.0.26100.1457; 10.0.17763.6189; 10.0.20348.2655; 10.0.22000.3147; 10.0.19044.4780; 10.0.22621.4037; 10.0.19045.4780; 10.0.22631.4037; 10.0.25398.1085…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.
CISA remediation statusoverdue since 2024-09-03receipt
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.receipt
Published to CISA KEVsame dayderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2024-08-13.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed2024-08-13receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.5 HIGHreceipt
Exploit probability0.4138 · top 1% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes65 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Windows 11 Version 24H2; Microsoft Windows 10 Version 1809; Microsoft Windows Server 2019; Microsoft Windows Server 2019 (Server Core installation); Microsoft Windows Server 2022…receipt
Published rangesmicrosoft windows 10 1507 < 10.0.10240.20751; microsoft windows 10 1607 < 10.0.14393.7259; microsoft windows 10 1809 < 10.0.17763.6189; microsoft windows 10 21h2 < 10.0.19044.4780receipt
Show all 14 published ranges
microsoft windows 10 1507 < 10.0.10240.20751
microsoft windows 10 1607 < 10.0.14393.7259
microsoft windows 10 1809 < 10.0.17763.6189
microsoft windows 10 21h2 < 10.0.19044.4780
microsoft windows 10 22h2 < 10.0.19045.4780
microsoft windows 11 21h2 < 10.0.22000.3147
microsoft windows 11 22h2 < 10.0.22621.4037
microsoft windows 11 23h2 < 10.0.22631.4037
microsoft windows 11 24h2 < 10.0.26100.1457
microsoft windows server 2012 r2
microsoft windows server 2016 < 10.0.14393.7259
microsoft windows server 2019 < 10.0.17763.6189
microsoft windows server 2022 < 10.0.20348.2655
microsoft windows server 2022 23h2 < 10.0.25398.1085
Fixed in10.0.26100.1457; 10.0.17763.6189; 10.0.20348.2655; 10.0.22000.3147; 10.0.19044.4780; 10.0.22621.4037; 10.0.19045.4780; 10.0.22631.4037; 10.0.25398.1085…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

Network requestrequires user interactionCISA KEV listingadded 08-13 · due 09-03Microsoft Windows Server 2019CWE-843 weaknessFull compromise (C/I/A)C:H / I:H / A:Hmandates remediationexploits CWE-843data compromise

What it is stated by the CNA

Scripting Engine Memory Corruption Vulnerability receipt

NVD's analysis a second authority

weakness
CWE-843
affected versions
microsoft windows 10 1507 < 10.0.10240.20751; microsoft windows 10 1607 < 10.0.14393.7259; microsoft windows 10 1809 < 10.0.17763.6189; and 11 more, listed in full below
also scored by
[email protected] 7.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

check it yourself msrc.microsoft.com receipt

Dated events

2024-08-13Added to CISA KEV2024-09-03CISA remediation due2025-03-17EPSS moved 0.01 to 0.802026-06-15EPSS moved 0.30 to 0.39

Movement the material steps

14 Aug 20240.01008
17 Mar 20250.79769 · crossed 0.10 and 0.50 · scoring model v2025.03.14
20 Mar 20250.62787
27 Mar 20250.87263
28 Mar 20250.62787
15 Apr 20250.15451 · crossed 0.50
12 Sep 20250.25583
22 Oct 20250.38953
29 Oct 20250.22601
18 Nov 20250.40702
21 Nov 20250.22153
15 Jun 20260.39457 · scoring model v2026.06.15
22 Jul 20260.4138
Show all 54 observations
14 Aug 20240.01008
15 Aug 20240.01613
16 Aug 20240.02297
15 Sep 20240.01646
15 Oct 20240.01323
15 Nov 20240.01503
20 Nov 20240.01064
16 Jan 20250.01385
17 Mar 20250.79769
19 Mar 20250.72385
20 Mar 20250.62787
23 Mar 20250.72385
27 Mar 20250.87263
28 Mar 20250.62787
29 Mar 20250.72385
30 Mar 20250.62787
15 Apr 20250.15451
15 May 20250.19943
17 May 20250.18494
20 May 20250.15181
24 Jun 20250.1704
9 Jul 20250.18494
13 Jul 20250.21637
16 Jul 20250.19943
18 Jul 20250.18494
5 Aug 20250.1704
17 Aug 20250.18494
8 Sep 20250.21637
12 Sep 20250.25583
19 Sep 20250.22064
21 Sep 20250.25932
25 Sep 20250.24103
2 Oct 20250.23635
12 Oct 20250.26299
19 Oct 20250.26797
22 Oct 20250.38953
27 Oct 20250.37939
29 Oct 20250.22601
1 Nov 20250.22153
18 Nov 20250.40702
21 Nov 20250.22153
22 Nov 20250.22601
24 Nov 20250.25196
5 Dec 20250.24715
18 Dec 20250.25196
31 Dec 20250.24715
29 Jan 20260.26348
3 Feb 20260.30231
18 Feb 20260.26847
28 Feb 20260.26348
3 Apr 20260.30231
15 Jun 20260.39457
6 Jul 20260.39196
22 Jul 20260.4138

54 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 0.4138Published · CISA KEV2024-08-13Index as of2026-09-04

Listed by CISA on the day it published and the record had been public for 2 years when this index was last written.

No material movement in 44 days as of the last ingest this index recorded.

Published 2024-08-13 receipt · CISA KEV 2024-08-13 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-843, access of resource using incompatible type ('type confusion'). The index holds 923 prior instances of this class, 41 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2019-0752 · Microsoft Internet Explorer 11matches 9 of 9KEV listed · 2019receipt
CVE-2025-30397 · Microsoft Windows 10 Version 1507matches 9 of 9KEV listed · 2025receipt
CVE-2024-23222 · Apple Safarimatches 7 of 9KEV listed · 2024receipt
CVE-2023-2033 · Google Chromematches 7 of 9KEV listed · 2023receipt
CVE-2023-23529 · Apple iOS and iPadOSmatches 7 of 9KEV listed · 2023receipt
CVE-2023-3079 · Google Chromematches 7 of 9KEV listed · 2023receipt

"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

923 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

Its defect family

microsoft windows 11 version 24h2

Of the 2 records in this family, this is the only one holding a stated fix version: 10.0.26100.1457; 10.0.17763.6189; 10.0.20348.2655; 10.0.2200.

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

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.