vciy

CVE-2022-44666

INDEX BUILT · 2026-09-20

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Windows Contacts Remote Code Execution Vulnerability

CVE-2022-446664 of 4 sources documented this
50

rank 50 = 21 + 20 + 1 + 8 + 0

rank@v1 · this cycle

Someone is already using it

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

EPSS 0.41372  ·  without this subject the record ranks 29

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 30

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

rose on 2025-12-14  ·  without this subject the record ranks 49

How much of the world it touches

NVD CPE configurations

9 products in the CPE ranges  ·  without this subject the record ranks 42

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 50

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$2.06Mover the next 30 days, if this record is yours
Movement+$523,000on 2023-02-28, the last material move, 3 years, 5 months before this reading
Basisassumeda published average, not your estate

$2.06M = $4.99M incident cost x 1 exposure x 0.41372 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

0.41372EPSSNOT IN KEVas of 2026-09-20
Severity7.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationpublic proof-of-conceptreceipt
Defensefix version namedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-06-15, 44 days at 0.41, as of 2026-07-29. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Running Microsoft Windows 10 Version 1809? Check your version

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AcceptDeferPatch by…Not affectedMitigated

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachneeds local access · no privileges required · user interaction required · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classNo CWE mapping in held sources.

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in10.0.17763.3770; 10.0.19043.2364; 10.0.20348.1366; 10.0.19042.2364; 10.0.22000.1335; 10.0.19044.2364; 10.0.22621.993; 10.0.19045.2364; 10.0.10240.19624…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.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Proof-of-concept published · 1 public repository, 2023-02-15.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 1 public repository2023-02-15receipt
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.8 HIGHreceipt
Exploit probability0.41372 · top 1% 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 1809; Microsoft Windows Server 2019; Microsoft Windows Server 2019 (Server Core installation); Microsoft Windows 10 Version 21H1; Microsoft Windows Server 2022…receipt
Published rangesmicrosoft windows 10 20h2; microsoft windows 10 21h1; microsoft windows 10 21h2; microsoft windows 10 22h2receipt
Show all 9 published ranges
microsoft windows 10 20h2
microsoft windows 10 21h1
microsoft windows 10 21h2
microsoft windows 10 22h2
microsoft windows 10 1607
microsoft windows 10 1809
microsoft windows 11 22h2
microsoft windows server 2008 r2
microsoft windows server 2012 r2
Fixed in10.0.17763.3770; 10.0.19043.2364; 10.0.20348.1366; 10.0.19042.2364; 10.0.22000.1335; 10.0.19044.2364; 10.0.22621.993; 10.0.19045.2364; 10.0.10240.19624…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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What it is stated by the CNA

Windows Contacts Remote Code Execution Vulnerability receipt

NVD's analysis a second authority

affected versions
microsoft windows 10 20h2; microsoft windows 10 21h1; microsoft windows 10 21h2; and 6 more, listed in full below
also scored by
[email protected] 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

check it yourself msrc.microsoft.com receipt

Dated events

2023-02-28EPSS moved 0.04 to 0.152025-03-17EPSS moved 0.00 to 0.632026-06-15EPSS moved 0.55 to 0.40

Movement the material steps

14 Dec 20220.01103
28 Feb 20230.14958 · crossed 0.10
7 Mar 20230.01269 · crossed 0.10 · scoring model v2023.03.01
17 Mar 20250.628 · crossed 0.10 and 0.50 · scoring model v2025.03.14
19 Mar 20250.52474
20 Mar 20250.628
27 Mar 20250.52474
28 Mar 20250.628
29 Mar 20250.52474
30 Mar 20250.628
15 Jun 20260.40435 · crossed 0.50 · scoring model v2026.06.15
29 Jul 20260.41372
Show all 68 observations
14 Dec 20220.01103
16 Dec 20220.01528
21 Feb 20230.04475
28 Feb 20230.14958
7 Mar 20230.01269
11 Mar 20230.00480
22 Mar 20230.00963
30 Mar 20230.01527
8 May 20230.00509
19 Jun 20230.05221
8 Jul 20230.00320
12 Aug 20230.00316
25 Nov 20230.00396
9 Dec 20230.00336
2 Jan 20240.00527
15 Jan 20240.00483
27 Jan 20240.01112
9 Feb 20240.00493
22 Feb 20240.00476
6 Mar 20240.00536
1 Apr 20240.00666
15 Apr 20240.00425
12 May 20240.00476
25 May 20240.00545
7 Jun 20240.00943
22 Jun 20240.00611
5 Jul 20240.00662
20 Jul 20240.00895
17 Aug 20240.01249
1 Sep 20240.00950
1 Oct 20240.01127
15 Oct 20240.00878
29 Oct 20240.00465
27 Nov 20240.00522
17 Dec 20240.00608
19 Dec 20240.00552
26 Dec 20240.00532
5 Feb 20250.00481
17 Mar 20250.628
19 Mar 20250.52474
20 Mar 20250.628
27 Mar 20250.52474
28 Mar 20250.628
29 Mar 20250.52474
30 Mar 20250.628
15 Apr 20250.67287
17 Apr 20250.628
22 Apr 20250.63262
5 May 20250.628
20 May 20250.63262
2 Jun 20250.65488
6 Jul 20250.6668
24 Jul 20250.63251
7 Aug 20250.57413
1 Oct 20250.61552
9 Oct 20250.62752
27 Oct 20250.58691
28 Oct 20250.62752
18 Nov 20250.54404
21 Nov 20250.62752
14 Dec 20250.67981
27 Dec 20250.64335
28 Dec 20250.67981
22 Feb 20260.57145
22 May 20260.53481
23 May 20260.54911
15 Jun 20260.40435
29 Jul 20260.41372

68 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 0.41372Published2022-12-13Public PoC2023-02-15Index as of2026-07-29

The record had been public for 3 years, 7 months when this index was last written.

Published 2022-12-13 receipt · Public PoC 2023-02-15 receipt · Index as of 2026-07-29 derived

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