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CVE-2022-4046

INDEX BUILT · 2026-09-20

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CODESYS: Improper memory restrictions fro CODESYS Control

CVE-2022-40463 of 4 sources documented this
22

rank 22 = 0 + 22 + 0 + 0 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.00878  ·  without this subject the record ranks 22

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 8.8, from the CNA  ·  without this subject the record ranks 0

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 22

How much of the world it touches

NVD CPE configurations

0 products in the CPE ranges  ·  without this subject the record ranks 22

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 22

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$43,800over 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

$43,800 = $4.99M incident cost x 1 exposure x 0.00878 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

0.00878EPSSNOT IN KEVas of 2026-09-20
Severity8.8 HIGHreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2023-08-04, 1096 days at 0.01, as of 2026-08-04. arc-rules@v1

Foresight · where to check next

Pulse ConnectCVE-2017-1000253CVE-2022-22706CVE-2020-29557Apple iOSMicrosoft Windows4046

This record is one instance of CWE-119, improper restriction of operations within the bounds of a memory buffer. The index holds 14297 prior instances of this class, 57 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 CODESYS Control for BeagleBone SL? Check your version

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Harm, if it fires from the vector and the weakness

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Reachnetwork-reachable · 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-119 Improper Restriction of Operations within the Bounds of a Memory Bufferreceipt
Published consequencesCWE-119: Integrity, Confidentiality, Availability: Execute Unauthorized Code or Commands, Modify Memory; Availability, Confidentiality: Read Memory, DoS: Crash, Exit, or Restart, DoS: Resource…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed inNo fix version in held sources, as the index stood on 4 Aug 2026.
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 CNA8.8 HIGHreceipt
Exploit probability0.00878 · top 43% of all CVEsreceipt
Assigned byCERTVDEreceipt
Recorded changes22 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productCODESYS Control for BeagleBone SL; CODESYS Control for emPC-A/iMX6 SL; CODESYS Control for IOT2000 SL; CODESYS Control for Linux SL; CODESYS Control for PFC100 SL; CODESYS Control for PFC200 SL…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

Network requestrequires low privilegesCODESYS HMI (SL)CWE-119 buffer overflowFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-119data compromise

What it is stated by the CNA

In CODESYS Control in multiple versions a improper restriction of operations within the bounds of a memory buffer allow an remote attacker with user privileges to gain full access of the device. receipt

NVD's analysis a second authority

weakness
CWE-119
also scored by
[email protected] 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

check it yourself cert.vde.com receipt

Movement the material steps

4 Aug 20230.00100
17 Mar 20250.01198 · scoring model v2025.03.14
15 Jun 20260.00661 · scoring model v2026.06.15
4 Aug 20260.00878
Show all 22 observations
4 Aug 20230.00100
9 Aug 20230.00109
9 Jun 20240.00110
3 Jul 20240.00128
9 Aug 20240.00200
17 Dec 20240.00047
23 Feb 20250.00051
17 Mar 20250.01198
29 Mar 20250.02695
30 Mar 20250.01198
15 Apr 20250.00963
28 Apr 20250.00937
15 May 20250.01269
30 Aug 20250.00762
18 Nov 20250.0097
21 Nov 20250.00762
28 Apr 20260.00845
30 May 20260.00901
31 May 20260.00773
15 Jun 20260.00661
18 Jun 20260.00655
4 Aug 20260.00878

22 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 0.00878Published2023-08-03Index as of2026-08-04

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

Published 2023-08-03 receipt · Index as of 2026-08-04 derived

The pattern, elsewhere

This record is one instance of CWE-119, improper restriction of operations within the bounds of a memory buffer. The index holds 14297 prior instances of this class, 57 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2021-22894 · Pulse Connect Securematches 8 of 9KEV listed · 2021receipt
CVE-2017-1000253matches 7 of 8KEV listed · 2017receipt
CVE-2022-22706matches 7 of 8KEV listed · 2022receipt
CVE-2020-29557matches 7 of 8KEV listed · 2021receipt
CVE-2026-20700 · Apple iOS and iPadOSmatches 7 of 9KEV listed · 2026receipt
CVE-2023-36033 · Microsoft Windows 10 Version 1809matches 7 of 9KEV listed · 2023receipt

"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

14297 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.

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What usually comes next

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