vciy

CVE-2022-45790

INDEX BUILT · 2026-09-20

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Omron FINS memory protection susceptible to bruteforce

CVE-2022-457904 of 4 sources documented this
33

rank 33 = 0 + 23 + 0 + 10 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.00703  ·  without this subject the record ranks 33

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.1, from NVD  ·  without this subject the record ranks 10

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 33

How much of the world it touches

NVD CPE configurations

20 products in the CPE ranges  ·  without this subject the record ranks 23

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 33

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$21,500over 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

$21,500 = $4.99M incident cost x 0.6121449559255632 exposure x 0.00703 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

0.00703EPSSNOT IN KEVas of 2026-09-20
Severity8.6 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2024-01-24, 873 days at 0.01, as of 2026-06-15. 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
Dragos8.6 HIGHreceipt
NVD9.1 CRITICALreceipt
What it costs
DragosComplete integrity loss, with impact beyond the vulnerable componentreceipt
NVDComplete confidentiality and integrity lossreceipt

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

Running Omron CJ-series and CS-series CPU modules? Check your version

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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 integrity loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-307 Improper Restriction of Excessive Authentication Attemptsreceipt
Published consequencesCWE-307: Access Control: Bypass Protection Mechanism[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in1.5; 2.1; 4.1; 1.4; 1.3receipt
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 CNA8.6 HIGHreceipt
CVSS, NVD9.1 CRITICALreceipt
Exploit probability0.00703 · top 48% of all CVEsreceipt
Blast breadth20 products across 1 vendorderived
Assigned byDragosreceipt
Recorded changes12 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productOmron CJ-series and CS-series CPU modulesreceipt
Published rangesomron cj1g-cpu45p firmware < 4.1; omron cj1g-cpu45p-gtc firmware < 4.1; omron cj1g-cpu44p firmware < 4.1; omron cj1g-cpu43p firmware < 4.1receipt
Show all 20 published ranges
omron cj1g-cpu45p firmware < 4.1
omron cj1g-cpu45p-gtc firmware < 4.1
omron cj1g-cpu44p firmware < 4.1
omron cj1g-cpu43p firmware < 4.1
omron cj1g-cpu42p firmware < 4.1
omron cp1e-e firmware < 1.3
omron cp1e-n firmware < 1.3
omron cj2h-cpu68 firmware < 1.5
omron cj2h-cpu67 firmware < 1.5
omron cj2h-cpu66 firmware < 1.5
omron cj2h-cpu65 firmware < 1.5
omron cj2h-cpu64 firmware < 1.5
omron cj2h-cpu68-eip firmware < 1.5
omron cj2h-cpu67-eip firmware < 1.5
omron cj2h-cpu66-eip firmware < 1.5
omron cj2h-cpu65-eip firmware < 1.5
omron cj2h-cpu64-eip firmware < 1.5
omron cj2m-cpu35 firmware < 2.1
omron cj2m-cpu34 firmware < 2.1
omron cj2m-cpu33 firmware < 2.1
Fixed in1.5; 2.1; 4.1; 1.4; 1.3receipt

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 interactionOmron CJ-seriesCWE-307 weaknessAdjacent componentsscope changeIntegrity lossI:Hexploits CWE-307scope changedata compromise

What it is stated by the CNA

The Omron FINS protocol has an authenticated feature to prevent access to memory regions. Authentication is susceptible to bruteforce attack, which may allow an adversary to gain access to protected memory. This access can allow overwrite of values including programmed logic. receipt

NVD's analysis a second authority

severity
9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
weakness
CWE-307
affected versions
omron cj1g-cpu45p firmware < 4.1; omron cj1g-cpu45p-gtc firmware < 4.1; omron cj1g-cpu44p firmware < 4.1; and 17 more, listed in full below
also scored by
[email protected] 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

The CNA scored it 8.6 and NVD 9.1. Both are shown because both were published; we do not pick one.

check it yourself cisa.gov fa.omron.co.jp dragos.com receipt

Movement the material steps

24 Jan 20240.00045
17 Mar 20250.00389 · scoring model v2025.03.14
15 Jun 20260.00703 · scoring model v2026.06.15
Show all 12 observations
24 Jan 20240.00045
30 Jan 20240.00062
17 Dec 20240.00086
22 Dec 20240.00091
28 Jan 20250.00133
23 Feb 20250.00143
17 Mar 20250.00389
29 Mar 20250.0052
30 Mar 20250.00389
18 Nov 20250.00329
21 Nov 20250.00389
15 Jun 20260.00703

12 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 0.00703Published2024-01-22Index as of2026-06-15

The record had been public for 2 years, 4 months when this index was last written.

Published 2024-01-22 receipt · Index as of 2026-06-15 derived

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