vciy

CVE-2024-49138

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.

Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVE-2024-491384 of 4 sources documented this
75

rank 75 = 40 + 20 + 0 + 9 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.26215 · CISA KEV listed  ·  without this subject the record ranks 35

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 55

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 75

How much of the world it touches

NVD CPE configurations

16 products in the CPE ranges  ·  without this subject the record ranks 66

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 69

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$1.31Mover 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

$1.31M = $4.99M incident cost x 1 exposure x 0.26215 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

0.26215EPSSKEV · LISTED
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationin the wild · KEVreceipt
Defensefix version namedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2026-06-15, 93 days at 0.26, as of 2026-09-16. arc-rules@v1

Foresight · where to check next

Microsoft WindowsMicrosoft WindowsMicrosoft WindowsMicrosoft Windows49138

This record is one instance of CWE-122, heap-based buffer overflow. The index holds 3215 prior instances of this class, 19 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 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.

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 · the CNA's vectorreceipt
Weakness classCWE-122 Heap-based Buffer Overflowreceipt
Published consequencesCWE-122: Availability: DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory); Integrity, Confidentiality, Availability, Access Control: Execute…[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 in10.0.10240.20857; 10.0.14393.7606; 10.0.17763.6659; 10.0.19044.5247; 10.0.19045.5247; 10.0.22621.4602; 10.0.22631.4602; 10.0.26100.2605; 6.0.6003.23016…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 2024-12-31receipt
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, 2024-12-10.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 9 public repositories2025-01-15receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2024-12-10receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.8 HIGHreceipt
Exploit probability0.26215 · top 2% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes71 · 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 < 10.0.10240.20857; microsoft windows 10 1607 < 10.0.14393.7606; microsoft windows 10 1809 < 10.0.17763.6659; microsoft windows 10 21h2 < 10.0.19044.5247receipt
Show all 16 published ranges
microsoft windows 10 1507 < 10.0.10240.20857
microsoft windows 10 1607 < 10.0.14393.7606
microsoft windows 10 1809 < 10.0.17763.6659
microsoft windows 10 21h2 < 10.0.19044.5247
microsoft windows 10 22h2 < 10.0.19045.5247
microsoft windows 11 22h2 < 10.0.22621.4602
microsoft windows 11 23h2 < 10.0.22631.4602
microsoft windows 11 24h2 < 10.0.26100.2605
microsoft windows server 2008 r2
microsoft windows server 2008 sp2
microsoft windows server 2012 r2
microsoft windows server 2016 < 10.0.14393.7606
microsoft windows server 2019 < 10.0.17763.6659
microsoft windows server 2022 < 10.0.20348.2966
microsoft windows server 2022 23h2 < 10.0.25398.1308
microsoft windows server 2025 < 10.0.26100.2605
Fixed in10.0.10240.20857; 10.0.14393.7606; 10.0.17763.6659; 10.0.19044.5247; 10.0.19045.5247; 10.0.22621.4602; 10.0.22631.4602; 10.0.26100.2605; 6.0.6003.23016…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.

Did this affect your environment?Answering needs an account.

Attack path

Local accessrequires low privilegesCISA KEV listingadded 12-10 · due 12-31Microsoft Windows Server 2012CWE-122 weaknessFull compromise (C/I/A)C:H / I:H / A:Hmandates remediationexploits CWE-122data compromise

What it is stated by the CNA

Windows Common Log File System Driver Elevation of Privilege Vulnerability receipt

NVD's analysis a second authority

weakness
CWE-122
affected versions
microsoft windows 10 1507 < 10.0.10240.20857; microsoft windows 10 1607 < 10.0.14393.7606; microsoft windows 10 1809 < 10.0.17763.6659; and 13 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

2024-12-10Added to CISA KEV2024-12-31CISA remediation due2025-03-17EPSS moved 0.00 to 0.512026-06-15EPSS moved 0.87 to 0.25

Movement the material steps

11 Dec 20240.00043
17 Mar 20250.50801 · crossed 0.10 and 0.50 · scoring model v2025.03.14
15 Apr 20250.87159
15 Jun 20260.25414 · crossed 0.50 · scoring model v2026.06.15
16 Sep 20260.26215

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

Show all 57 observations
11 Dec 20240.00043
12 Dec 20240.01179
15 Dec 20240.00154
17 Dec 20240.00043
15 Jan 20250.00054
17 Mar 20250.50801
20 Mar 20250.51763
23 Mar 20250.50801
26 Mar 20250.53881
28 Mar 20250.50801
11 Apr 20250.51794
15 Apr 20250.87159
17 Apr 20250.86303
21 Apr 20250.87137
22 Apr 20250.86303
23 Apr 20250.87863
25 Apr 20250.88246
27 Apr 20250.88883
29 Apr 20250.86502
30 Apr 20250.88165
8 May 20250.87092
15 May 20250.84935
16 May 20250.86534
17 May 20250.87526
11 Jun 20250.86688
15 Jun 20250.85497
16 Jun 20250.8442
5 Aug 20250.83797
13 Aug 20250.85455
15 Sep 20250.84734
20 Sep 20250.87544
9 Oct 20250.8606
18 Oct 20250.85882
22 Oct 20250.87368
29 Oct 20250.88553
9 Nov 20250.87602
18 Nov 20250.80274
21 Nov 20250.87602
23 Nov 20250.86763
28 Dec 20250.88705
9 Jan 20260.8744
18 Jan 20260.85875
19 Jan 20260.85681
28 Feb 20260.84908
9 Mar 20260.85672
11 Mar 20260.84516
20 Mar 20260.84504
25 Mar 20260.85764
18 Apr 20260.84831
22 May 20260.85839
29 May 20260.85359
1 Jun 20260.85839
2 Jun 20260.86946
11 Jun 20260.86476
12 Jun 20260.87009
15 Jun 20260.25414
16 Sep 20260.26215

57 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 0.26215Published · CISA KEV2024-12-10Public PoC2025-01-15Index as of2026-09-16

Listed by CISA on the day it published, exploit probability more than doubled between 2024-12-11 and 2024-12-12 (0.00043 → 0.01179) and the record had been public for 1 year, 9 months when this index was last written.

Published 2024-12-10 receipt · CISA KEV 2024-12-10 receipt · Public PoC 2025-01-15 receipt · Index as of 2026-09-16 derived

The pattern, elsewhere

This record is one instance of CWE-122, heap-based buffer overflow. The index holds 3215 prior instances of this class, 19 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2024-30051 · Microsoft Windows 10 Version 1809matches 9 of 9KEV listed · 2024receipt
CVE-2023-23376 · Microsoft Windows 10 Version 1507matches 9 of 9KEV listed · 2023receipt
CVE-2023-28252 · Microsoft Windows 10 Version 1809matches 9 of 9KEV listed · 2023receipt
CVE-2026-85880 · Microsoft Windows 10 Version 1607matches 9 of 9KEV listed · 2026receipt
CVE-2025-21333 · Microsoft Windows 10 Version 21H2matches 9 of 9KEV listed · 2025receipt
CVE-2025-21418 · Microsoft Windows 10 Version 1507matches 9 of 9KEV listed · 2025receipt

"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

3215 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

Browse the index from here

These are index-wide views, not findings about CVE-2024-49138.

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.