vciy

CVE-2023-24941

INDEX BUILT · 2026-09-20

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Windows Network File System Remote Code Execution Vulnerability

CVE-2023-249414 of 4 sources documented this
51

rank 51 = 24 + 25 + 0 + 2 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.94683  ·  without this subject the record ranks 27

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from the CNA  ·  without this subject the record ranks 26

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 51

How much of the world it touches

NVD CPE configurations

1 product in the CPE ranges  ·  without this subject the record ranks 49

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 51

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.72Mover the next 30 days, if this record is yours
Movement-$2.07Mon 2024-12-17, the last material move, 1 year, 5 months before this reading
Basisassumeda published average, not your estate

$4.72M = $4.99M incident cost x 1 exposure x 0.94683 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

0.94683EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementthreshold crossedreceipt
RISING10Risen from 0.00237 to 0.94683 across 40 observations. arc-rules@v1

Foresight · where to check next

Microsoft WindowsGoogle AndroidLinuxNetScaler ADC24941

This record is one instance of CWE-908, use of uninitialized resource. The index holds 897 prior instances of this class, 4 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 Server 2019? 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

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-908 Use of Uninitialized Resourcereceipt
Published consequencesCWE-908: Confidentiality: Read Memory, Read Application Data; Availability: DoS: Crash, Exit, or Restart[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; 10.0.14393.5921; 6.2.9200.24266; 6.3.9600.20969receipt
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 CNA9.8 CRITICALreceipt
Exploit probability0.94683 · top 0.15% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes40 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productMicrosoft Windows Server 2019; Microsoft Windows Server 2019 (Server Core installation); Microsoft Windows Server 2022; Microsoft Windows Server 2016…receipt
Published rangesmicrosoft windows server 2012 r2receipt
Fixed in10.0.17763.4377; 10.0.20348.1726; 10.0.14393.5921; 6.2.9200.24266; 6.3.9600.20969receipt

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

Unauthenticated network requestno credentials, no interactionMicrosoft Windows Server 2019CWE-908 weaknessFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-908data compromise

What it is stated by the CNA

Windows Network File System Remote Code Execution Vulnerability receipt

NVD's analysis a second authority

weakness
CWE-908
affected versions
microsoft windows server 2012 r2
also scored by
[email protected] 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself msrc.microsoft.com receipt

Dated events

2023-05-16EPSS moved 0.00 to 0.782026-06-15EPSS moved 0.42 to 0.95

Movement the material steps

10 May 20230.00237
16 May 20230.78400 · crossed 0.10 and 0.50
10 Jun 20230.46141 · crossed 0.50
8 Jul 20230.14766
11 Aug 20230.28080
16 Aug 20230.38375
12 Oct 20230.51378 · crossed 0.50
20 Oct 20230.43236 · crossed 0.50
22 Nov 20230.50880 · crossed 0.50
19 Oct 20240.47697 · crossed 0.50
17 Dec 20240.00286 · crossed 0.10
17 Mar 20250.10908 · crossed 0.10 · scoring model v2025.03.14
19 Mar 20250.28076
29 Mar 20250.48541
30 Mar 20250.28076
15 Apr 20250.49524
18 Nov 20250.28076
21 Nov 20250.4389
15 Jun 20260.94683 · crossed 0.50 and 0.90 · scoring model v2026.06.15

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

Show all 40 observations
10 May 20230.00237
16 May 20230.78400
10 Jun 20230.46141
11 Jun 20230.39570
8 Jul 20230.14766
11 Jul 20230.18410
14 Jul 20230.16348
22 Jul 20230.18374
11 Aug 20230.28080
16 Aug 20230.38375
11 Sep 20230.39643
18 Sep 20230.45809
26 Sep 20230.47609
12 Oct 20230.51378
20 Oct 20230.43236
30 Oct 20230.45638
14 Nov 20230.46142
22 Nov 20230.50880
4 Mar 20240.50379
8 Apr 20240.50247
15 May 20240.52806
29 May 20240.56149
10 Jun 20240.52904
19 Oct 20240.47697
29 Nov 20240.46690
14 Dec 20240.41801
17 Dec 20240.00286
10 Feb 20250.00312
17 Mar 20250.10908
19 Mar 20250.28076
29 Mar 20250.48541
30 Mar 20250.28076
15 Apr 20250.49524
12 May 20250.42165
27 May 20250.4389
18 Nov 20250.28076
21 Nov 20250.4389
18 Dec 20250.40219
5 Mar 20260.416
15 Jun 20260.94683

40 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 0.94683Published2023-05-09Index as of2026-06-15

Exploit probability more than doubled between 2025-03-17 and 2025-03-19 (0.10908 → 0.28076) 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-908, use of uninitialized resource. The index holds 897 prior instances of this class, 4 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2026-85880 · Microsoft Windows 10 Version 1607matches 7 of 9KEV listed · 2026receipt
CVE-2024-29745 · Google Androidmatches 4 of 9KEV listed · 2024receipt
CVE-2024-50302 · Linuxmatches 4 of 9KEV listed · 2024receipt
CVE-2025-5777 · NetScaler ADConly 1 attribute comparableKEV 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

897 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 server 2019

Of the 3 records in this family, this is the only one holding a stated fix version: 10.0.17763.4377; 10.0.20348.1726; 10.0.14393.5921; 6.2.9200..

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.

Browse the index from here

These are index-wide views, not findings about CVE-2023-24941.

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.