vciy

CVE-2023-36874

INDEX BUILT · 2026-09-20

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Windows Error Reporting Service Elevation of Privilege Vulnerability

CVE-2023-368744 of 4 sources documented this
75

rank 75 = 40 + 20 + 1 + 8 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.43409 · 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

rose on 2025-10-22  ·  without this subject the record ranks 74

How much of the world it touches

NVD CPE configurations

12 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 69

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.17Mover 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

$2.17M = $4.99M incident cost x 1 exposure x 0.43409 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

0.43409EPSSKEV · LISTED
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationin the wild · KEVreceipt
Defensefix version namedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-07-12, 54 days at 0.43, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

Microsoft WindowsMicrosoft WindowsMicrosoft WindowsMicrosoft Windows36874

This record is one instance of CWE-59, improper link resolution before file access ('link following'). The index holds 1732 prior instances of this class, 24 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-59 Improper Link Resolution Before File Access ('Link Following')receipt
Published consequencesCWE-59: Confidentiality, Integrity, Access Control: Read Files or Directories, Modify Files or Directories, Bypass Protection Mechanism; Other: Execute Unauthorized Code or Commands[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 in10.0.17763.4645; 10.0.20348.1850; 10.0.22000.2176; 10.0.19044.3208; 10.0.22621.1992; 10.0.19045.3208; 10.0.10240.20048; 10.0.14393.6085; 6.0.6003.22175…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 2023-08-01receipt
CISA required actionApply updates per vendor instructions or discontinue use of the product if updates 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, 2023-07-11.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 5 public repositories2023-08-20receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2023-07-11receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.8 HIGHreceipt
Exploit probability0.43409 · top 1% of all CVEsreceipt
Blast breadth2 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes86 · 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 11 version 21H2…receipt
Published rangesmicrosoft windows 10 1507 < 10.0.10240.20048; microsoft windows 10 1607 < 10.0.14393.6085; microsoft windows 10 1809 < 10.0.17763.4645; microsoft windows 10 21h2 < 10.0.19041.3208receipt
Show all 12 published ranges
microsoft windows 10 1507 < 10.0.10240.20048
microsoft windows 10 1607 < 10.0.14393.6085
microsoft windows 10 1809 < 10.0.17763.4645
microsoft windows 10 21h2 < 10.0.19041.3208
microsoft windows 10 22h2 < 10.0.19045.3208
microsoft windows 11 21h2 < 10.0.22000.2176
microsoft windows 11 22h2 < 10.0.22621.1992
microsoft windows server 2008 r2
microsoft windows server 2012 r2
microsoft windows server 2016 < 10.0.14393.6085
microsoft windows server 2019 < 10.0.17763.4645
microsoft windows server 2022 < 10.0.20348.1850
Fixed in10.0.17763.4645; 10.0.20348.1850; 10.0.22000.2176; 10.0.19044.3208; 10.0.22621.1992; 10.0.19045.3208; 10.0.10240.20048; 10.0.14393.6085; 6.0.6003.22175…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 07-11 · due 08-01Microsoft Windows Server 2019CWE-59 weaknessFull compromise (C/I/A)C:H / I:H / A:Hmandates remediationexploits CWE-59data compromise

What it is stated by the CNA

Windows Error Reporting Service Elevation of Privilege Vulnerability receipt

NVD's analysis a second authority

weakness
CWE-59
affected versions
microsoft windows 10 1507 < 10.0.10240.20048; microsoft windows 10 1607 < 10.0.14393.6085; microsoft windows 10 1809 < 10.0.17763.4645; and 9 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

2023-07-11Added to CISA KEV2023-08-01CISA remediation due2024-06-28EPSS moved 0.00 to 0.062025-03-17EPSS moved 0.01 to 0.732026-07-12EPSS moved 0.32 to 0.43

Movement the material steps

12 Jul 20230.00144
17 Mar 20250.72947 · crossed 0.10 and 0.50 · scoring model v2025.03.14
15 Apr 20250.59365
29 Oct 20250.72201
18 Nov 20250.83096
21 Nov 20250.72201
15 Jun 20260.32309 · crossed 0.50 · scoring model v2026.06.15
12 Jul 20260.43058
1 Aug 20260.43409
Show all 72 observations
12 Jul 20230.00144
15 Jul 20230.00082
19 Jul 20230.00062
21 Aug 20230.00100
28 Sep 20230.00274
20 Nov 20230.00193
28 Nov 20230.00147
30 May 20240.00209
28 Jun 20240.05945
30 Jul 20240.05005
12 Aug 20240.04957
24 Aug 20240.04776
19 Sep 20240.03457
28 Oct 20240.03327
17 Dec 20240.08279
1 Jan 20250.00961
31 Jan 20250.00933
15 Feb 20250.00728
17 Mar 20250.72947
19 Mar 20250.70334
20 Mar 20250.72947
24 Mar 20250.70334
25 Mar 20250.72947
27 Mar 20250.69668
28 Mar 20250.77497
29 Mar 20250.70334
30 Mar 20250.77497
15 Apr 20250.59365
21 Apr 20250.63593
22 Apr 20250.68397
4 May 20250.66326
5 May 20250.63889
6 May 20250.66326
15 May 20250.61851
27 May 20250.64177
28 May 20250.56648
13 Jun 20250.52438
15 Jun 20250.52563
30 Jun 20250.58424
1 Jul 20250.66165
16 Jul 20250.64364
18 Jul 20250.66165
23 Jul 20250.65811
24 Jul 20250.63346
29 Jul 20250.62437
5 Aug 20250.61926
8 Aug 20250.62953
19 Sep 20250.63454
2 Oct 20250.62953
3 Oct 20250.61742
22 Oct 20250.69002
29 Oct 20250.72201
18 Nov 20250.83096
21 Nov 20250.72201
26 Nov 20250.73123
4 Dec 20250.71021
11 Dec 20250.7003
20 Dec 20250.68731
14 Jan 20260.68889
15 Jan 20260.68827
19 Jan 20260.71153
7 Feb 20260.7121
23 Feb 20260.71153
21 Apr 20260.71559
25 Apr 20260.71153
7 May 20260.68827
24 May 20260.67672
8 Jun 20260.70224
15 Jun 20260.32309
12 Jul 20260.43058
14 Jul 20260.42602
1 Aug 20260.43409

72 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 0.43409Published · CISA KEV2023-07-11Public PoC2023-08-20Index as of2026-09-04

Listed by CISA on the day it published and the record had been public for 3 years, 1 month when this index was last written.

No material movement in 34 days as of the last ingest this index recorded.

Published 2023-07-11 receipt · CISA KEV 2023-07-11 receipt · Public PoC 2023-08-20 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-59, improper link resolution before file access ('link following'). The index holds 1732 prior instances of this class, 24 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2025-60710 · Microsoft Windows 11 Version 24H2matches 9 of 9KEV listed · 2025receipt
CVE-2022-21999 · Microsoft Windows 10 Version 1809matches 9 of 9KEV listed · 2022receipt
CVE-2020-0638 · Microsoft Windowsmatches 9 of 9KEV listed · 2020receipt
CVE-2019-0841 · Microsoft Windowsmatches 9 of 9KEV listed · 2019receipt
CVE-2019-1064 · Microsoft Windows 10 Version 1703matches 9 of 9KEV listed · 2019receipt
CVE-2019-1069 · Microsoft Windows 10 Version 1703matches 9 of 9KEV listed · 2019receipt

"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

1732 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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These are index-wide views, not findings about CVE-2023-36874.

What usually comes next

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