vciy

CVE-2025-29824

INDEX BUILT · 2026-09-20

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Windows Common Log File System Driver Elevation of Privilege Vulnerability

CVE-2025-298244 of 4 sources documented this
77

rank 77 = 40 + 20 + 2 + 9 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.13904 · CISA KEV listed  ·  without this subject the record ranks 37

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 57

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-11-18  ·  without this subject the record ranks 75

How much of the world it touches

NVD CPE configurations

15 products in the CPE ranges  ·  without this subject the record ranks 68

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 71

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$694,000over the next 30 days, if this record is yours
Movement-$614,000on 2025-11-21, the last material move, 9 months before this reading
Basisassumeda published average, not your estate

$694,000 = $4.99M incident cost x 1 exposure x 0.13904 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

0.13904EPSSKEV · LISTED
Severity7.8 HIGHreceipt
Harmtotal loss · ransomware-linkedreceipt
Exploitationransomware use knownreceipt
Defensefix version namedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2026-06-15, 81 days at 0.14, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

Microsoft WindowsMicrosoft WindowsMicrosoft Windows29824

This record is one instance of CWE-416, use after free. The index holds 8700 prior instances of this class, 105 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

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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-416 Use After Freereceipt
Published consequencesCWE-416: Integrity: Modify Memory; Availability: DoS: Crash, Exit, or Restart; Confidentiality: Read Memory; Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands[email protected]
Ransomware campaign useKnown (CISA)receipt

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in10.0.10240.20978; 10.0.14393.7969; 10.0.17763.7136; 10.0.19044.5737; 10.0.19045.5737; 10.0.22621.5189; 10.0.22631.5189; 10.0.26100.3775; 6.1.7601.27670…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 2025-04-29receipt
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, 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: Ransomware campaign use known, 2025-04-08.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 3 public repositories2025-05-14receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2025-04-08receipt
  • RUNG 4Ransomware campaign use known2025-04-08receipt

Authority who says so

CVSS, the CNA7.8 HIGHreceipt
Exploit probability0.13904 · top 4% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes96 · 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 < 10.0.10240.20978; microsoft windows 10 1607 < 10.0.14393.7969; microsoft windows 10 1809 < 10.0.17763.7136; microsoft windows 10 21h2 < 10.0.19044.5737receipt
Show all 15 published ranges
microsoft windows 10 1507 < 10.0.10240.20978
microsoft windows 10 1607 < 10.0.14393.7969
microsoft windows 10 1809 < 10.0.17763.7136
microsoft windows 10 21h2 < 10.0.19044.5737
microsoft windows 10 22h2 < 10.0.19045.5737
microsoft windows 11 22h2 < 10.0.22621.5189
microsoft windows 11 23h2 < 10.0.22631.5189
microsoft windows 11 24h2 < 10.0.26100.3775
microsoft windows server 2008 r2
microsoft windows server 2012 r2
microsoft windows server 2016 < 10.0.14393.7969
microsoft windows server 2019 < 10.0.17763.7136
microsoft windows server 2022 < 10.0.20348.3453
microsoft windows server 2022 23h2 < 10.0.25398.1551
microsoft windows server 2025 < 10.0.26100.3775
Fixed in10.0.10240.20978; 10.0.14393.7969; 10.0.17763.7136; 10.0.19044.5737; 10.0.19045.5737; 10.0.22621.5189; 10.0.22631.5189; 10.0.26100.3775; 6.1.7601.27670…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 privilegesCISA KEV listingadded 04-08 · due 04-29Microsoft Windows Server 2012CWE-416 use after freeFull compromise (C/I/A)C:H / I:H / A:Hmandates remediationexploits CWE-416data compromise

What it is stated by the CNA

Use after free in Windows Common Log File System Driver allows an authorized attacker to elevate privileges locally. receipt

NVD's analysis a second authority

weakness
CWE-416
affected versions
microsoft windows 10 1507 < 10.0.10240.20978; microsoft windows 10 1607 < 10.0.14393.7969; microsoft windows 10 1809 < 10.0.17763.7136; and 12 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

2025-04-08Added to CISA KEV2025-04-15EPSS moved 0.11 to 0.042025-04-29CISA remediation due2026-06-15EPSS moved 0.01 to 0.18

Movement the material steps

9 Apr 20250.19164
15 Apr 20250.03591 · crossed 0.10
18 Nov 20250.138 · crossed 0.10
21 Nov 20250.01488 · crossed 0.10
15 Jun 20260.17982 · crossed 0.10 · scoring model v2026.06.15
4 Sep 20260.13904

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

Show all 82 observations
9 Apr 20250.19164
10 Apr 20250.18058
11 Apr 20250.1807
12 Apr 20250.13946
14 Apr 20250.10509
15 Apr 20250.03591
17 Apr 20250.04442
20 Apr 20250.04332
29 Apr 20250.04492
10 May 20250.05131
15 May 20250.01857
2 Jun 20250.02396
15 Jun 20250.0269
20 Jul 20250.02117
1 Aug 20250.02657
5 Aug 20250.0232
8 Aug 20250.03006
16 Aug 20250.01891
23 Aug 20250.02001
4 Sep 20250.01599
8 Sep 20250.01608
16 Sep 20250.01252
17 Sep 20250.0151
24 Sep 20250.00649
26 Sep 20250.00516
4 Oct 20250.00452
13 Oct 20250.00449
14 Oct 20250.00696
22 Oct 20250.01722
28 Oct 20250.01759
17 Nov 20250.01533
18 Nov 20250.138
21 Nov 20250.01488
2 Dec 20250.01367
15 Dec 20250.01191
18 Dec 20250.00987
20 Dec 20250.01191
21 Dec 20250.01324
23 Dec 20250.00847
26 Dec 20250.00761
29 Dec 20250.00847
30 Dec 20250.00898
1 Jan 20260.00847
3 Jan 20260.00761
14 Jan 20260.00667
18 Jan 20260.0084
20 Jan 20260.00829
14 Feb 20260.00903
17 Feb 20260.00786
18 Feb 20260.00579
19 Feb 20260.00472
25 Feb 20260.00543
26 Feb 20260.00472
2 Mar 20260.00579
3 Mar 20260.00497
6 Mar 20260.00472
8 Mar 20260.00405
10 Mar 20260.00427
12 Mar 20260.00405
19 Mar 20260.00466
21 Mar 20260.00386
22 Mar 20260.00373
23 Mar 20260.00451
25 Mar 20260.00406
30 Mar 20260.00353
15 Apr 20260.00392
22 Apr 20260.00416
29 Apr 20260.00392
2 May 20260.00288
11 May 20260.00391
12 May 20260.00415
17 May 20260.00799
18 May 20260.00922
22 May 20260.00947
29 May 20260.00922
7 Jun 20260.00829
14 Jun 20260.01
15 Jun 20260.17982
29 Jun 20260.1806
10 Jul 20260.13475
12 Aug 20260.13789
4 Sep 20260.13904

82 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 0.13904Published · CISA KEV2025-04-08Public PoC2025-05-14Index as of2026-09-04

Listed by CISA on the day it published, exploit probability more than doubled between 2025-11-17 and 2025-11-18 (0.01533 → 0.138) and the record had been public for 1 year, 4 months when this index was last written.

Published 2025-04-08 receipt · CISA KEV 2025-04-08 receipt · Public PoC 2025-05-14 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-416, use after free. The index holds 8700 prior instances of this class, 105 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2021-40449 · Microsoft Windows 10 Version 1809matches 9 of 9KEV listed · 2021receipt
CVE-2025-21334 · Microsoft Windows 10 Version 21H2matches 9 of 9KEV listed · 2025receipt
CVE-2025-21335 · Microsoft Windows 10 Version 21H2matches 9 of 9KEV listed · 2025receipt
CVE-2025-30400 · Microsoft Windows 10 Version 1809matches 9 of 9KEV listed · 2025receipt
CVE-2025-32701 · Microsoft Windows 10 Version 1507matches 9 of 9KEV listed · 2025receipt
CVE-2025-32709 · 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

8700 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.

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What usually comes next

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