vciy

CVE-2022-30190 · Follina

INDEX BUILT · 2026-09-20

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Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability

CVE-2022-301904 of 4 sources documented this
78

rank 78 = 40 + 23 + 0 + 9 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.99234 · CISA KEV listed  ·  without this subject the record ranks 38

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.3, from NVD  ·  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 78

How much of the world it touches

NVD CPE configurations

13 products in the CPE ranges  ·  without this subject the record ranks 69

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 72

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$4.95Mover the next 30 days, if this record is yours
Movement-$273,000on 2025-01-03, the last material move, 1 year, 8 months before this reading
Basisassumeda published average, not your estate

$4.95M = $4.99M incident cost x 1 exposure x 0.99234 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

0.99234EPSSKEV · LISTED
Severity7.8 HIGHreceipt
Harmtotal loss · ransomware-linkedreceipt
Exploitationransomware use knownreceipt
Defensefix version namedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2025-03-17, 536 days at 0.99, as of 2026-09-04. 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

Sources disagree here.

Severity score
Microsoft7.8 HIGHreceipt
NVD9.3 CRITICALreceipt
Scoring standard
MicrosoftCVSS v3.1receipt
NVDCVSS v2.0receipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running Microsoft Windows 10 Version 1809? Check your version

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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.
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 in10.0.17763.3046; 10.0.19043.1766; 10.0.20348.770; 10.0.19042.1766; 10.0.22000.739; 10.0.19044.1766; 10.0.10240.19325; 10.0.14393.5192; 6.1.7601.25984…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 2022-07-05receipt
CISA required actionApply updates per vendor instructions.receipt
Published to CISA KEV13 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Ransomware campaign use known, 2022-06-14.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published · 94 public repositories2022-05-30receipt
  • RUNG 3Exploited in the wild · CISA KEV listed2022-06-14receipt
  • RUNG 4Ransomware campaign use known2022-06-14receipt

Authority who says so

CVSS, the CNA7.8 HIGHreceipt
CVSS, NVD9.3 CRITICALreceipt
Exploit probability0.99234 · top 0.07% of all CVEsreceipt
Blast breadth3 products across 1 vendorderived
Assigned bymicrosoftreceipt
Recorded changes156 · last 10 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 1507 < 10.0.10240.19325; microsoft windows 10 1607 < 10.0.14393.5192; microsoft windows 10 1809 < 10.0.17763.3046; microsoft windows 10 20h2 < 10.0.19042.1766receipt
Show all 13 published ranges
microsoft windows 10 1507 < 10.0.10240.19325
microsoft windows 10 1607 < 10.0.14393.5192
microsoft windows 10 1809 < 10.0.17763.3046
microsoft windows 10 20h2 < 10.0.19042.1766
microsoft windows 10 21h1 < 10.0.19043.1766
microsoft windows 10 21h2 < 10.0.19044.1766
microsoft windows 11 21h2 < 10.0.22000.739
microsoft windows server 2008 r2
microsoft windows server 2012 r2
microsoft windows server 2016 < 10.0.14393.5192
microsoft windows server 2019 < 10.0.17763.3046
microsoft windows server 2022 < 10.0.20348.770
microsoft windows server 20h2 < 10.0.19042.1766
Fixed in10.0.17763.3046; 10.0.19043.1766; 10.0.20348.770; 10.0.19042.1766; 10.0.22000.739; 10.0.19044.1766; 10.0.10240.19325; 10.0.14393.5192; 6.1.7601.25984…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

Follina is the common name for CVE-2022-30190. A remote code execution vulnerability exists when MSDT is called using the URL protocol from a calling application such as Word. An attacker who successfully exploits this vulnerability can run arbitrary code with the privileges of the calling application. The attacker can then install programs, view, change, or delete data, or create new accounts in the context allowed by the user’s rights. Please see the MSRC Blog Entry for important information about steps you can take to protect your system from this vulnerability. cve-aliases@2026-08-27

NVD's analysis a second authority

severity
9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C
affected versions
microsoft windows 10 1507 < 10.0.10240.19325; microsoft windows 10 1607 < 10.0.14393.5192; microsoft windows 10 1809 < 10.0.17763.3046; and 10 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 · [email protected] 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

The CNA scored it 7.8 and NVD 9.3. Both are shown because both were published; we do not pick one.

check it yourself msrc.microsoft.com receipt

Dated events

2022-06-03EPSS moved 0.03 to 0.132022-06-14Added to CISA KEV2022-07-05CISA remediation due2025-03-17EPSS moved 0.08 to 0.932026-06-15EPSS moved 0.94 to 0.99

Movement the material steps

2 Jun 20220.02763
3 Jun 20220.12761 · crossed 0.10
7 Jun 20220.51943 · crossed 0.50
8 Jun 20220.69589
7 Mar 20230.97453 · crossed 0.90 · scoring model v2023.03.01
17 Dec 20240.13816 · crossed 0.50 and 0.90
3 Jan 20250.08340 · crossed 0.10
17 Mar 20250.92777 · crossed 0.10 and 0.50 and 0.90 · scoring model v2025.03.14
15 Jun 20260.99374 · scoring model v2026.06.15
18 Aug 20260.99234

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

Show all 142 observations
2 Jun 20220.02763
3 Jun 20220.12761
7 Jun 20220.51943
8 Jun 20220.69589
7 Mar 20230.97453
16 Mar 20230.97435
28 Mar 20230.97457
21 Apr 20230.97440
8 May 20230.97424
28 May 20230.97001
8 Jun 20230.97104
21 Jun 20230.97087
4 Jul 20230.97025
8 Jul 20230.97319
11 Aug 20230.97252
24 Aug 20230.97213
6 Sep 20230.97251
3 Oct 20230.97272
16 Oct 20230.97212
12 Nov 20230.97167
25 Nov 20230.97300
10 Dec 20230.97162
21 Dec 20230.96849
23 Dec 20230.96839
7 Jan 20240.96798
4 Feb 20240.96830
5 Mar 20240.96858
3 Apr 20240.97024
17 Apr 20240.97141
30 Apr 20240.97175
16 May 20240.97188
28 May 20240.96844
14 Jun 20240.96632
27 Jun 20240.96222
29 Jun 20240.96079
25 Jul 20240.96611
8 Aug 20240.96648
23 Aug 20240.96634
4 Sep 20240.96370
20 Sep 20240.96254
2 Oct 20240.96372
17 Oct 20240.96329
31 Oct 20240.96401
13 Nov 20240.96732
27 Nov 20240.96416
10 Dec 20240.96838
17 Dec 20240.13816
3 Jan 20250.08340
14 Feb 20250.07417
28 Feb 20250.08609
12 Mar 20250.07799
17 Mar 20250.92777
21 Mar 20250.9293
24 Mar 20250.92737
28 Mar 20250.92888
2 Apr 20250.92856
3 Apr 20250.93107
5 Apr 20250.92964
15 Apr 20250.92796
27 Apr 20250.93056
29 Apr 20250.92877
30 Apr 20250.93017
1 May 20250.93244
5 May 20250.92987
6 May 20250.93219
15 May 20250.92943
17 May 20250.9312
19 May 20250.93093
21 May 20250.93461
22 May 20250.93384
31 May 20250.93388
1 Jun 20250.93481
4 Jun 20250.93552
15 Jun 20250.9339
18 Jun 20250.93223
19 Jun 20250.93429
1 Jul 20250.93481
2 Jul 20250.93412
3 Jul 20250.9339
8 Jul 20250.93552
16 Jul 20250.93429
18 Jul 20250.93412
24 Jul 20250.93239
29 Jul 20250.93213
4 Aug 20250.934
16 Aug 20250.93259
17 Aug 20250.93153
20 Aug 20250.93259
26 Aug 20250.93319
2 Sep 20250.93422
4 Sep 20250.934
16 Sep 20250.93153
19 Sep 20250.93259
22 Sep 20250.9305
23 Sep 20250.93119
26 Sep 20250.93319
1 Oct 20250.93379
2 Oct 20250.93456
17 Oct 20250.93247
20 Oct 20250.9302
24 Oct 20250.93091
27 Oct 20250.93016
28 Oct 20250.93091
30 Oct 20250.93187
14 Nov 20250.93389
17 Nov 20250.93279
18 Nov 20250.93722
21 Nov 20250.93279
23 Nov 20250.93456
12 Dec 20250.93617
14 Dec 20250.93744
16 Dec 20250.93847
18 Dec 20250.93737
27 Dec 20250.9368
28 Dec 20250.93612
18 Jan 20260.93528
22 Jan 20260.93614
23 Jan 20260.93528
29 Jan 20260.93614
5 Feb 20260.93596
18 Feb 20260.93528
19 Feb 20260.93478
23 Feb 20260.93528
25 Feb 20260.93393
26 Feb 20260.93461
27 Feb 20260.93552
4 Mar 20260.93533
21 Mar 20260.93503
30 Mar 20260.93284
1 Apr 20260.93317
2 Apr 20260.9349
5 Apr 20260.93614
7 Apr 20260.93596
21 Apr 20260.93202
22 Apr 20260.93362
30 Apr 20260.93528
5 May 20260.93614
9 May 20260.93596
22 May 20260.93528
1 Jun 20260.93596
15 Jun 20260.99374
18 Aug 20260.99234

142 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 0.99234Public PoC2022-05-30Published2022-06-01CISA KEV2022-06-14Index as of2026-09-04

Listed by CISA 13 days after it published, exploit probability more than doubled between 2022-06-02 and 2022-06-03 (0.02763 → 0.12761) and the record had been public for 4 years, 3 months when this index was last written.

No material movement in 17 days as of the last ingest this index recorded.

Public PoC 2022-05-30 receipt · Published 2022-06-01 receipt · CISA KEV 2022-06-14 receipt · Index as of 2026-09-04 derived

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