vciy

CVE-2020-15782

INDEX BUILT · 2026-09-20

No source can show you its own past. This one can.

Print this page to keep the view as it stands on this date. Everything hidden behind a disclosure opens, and every receipt prints with its value.

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl

CVE-2020-157824 of 4 sources documented this
31

rank 31 = 1 + 25 + 0 + 5 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.05184  ·  without this subject the record ranks 30

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.8, from NVD  ·  without this subject the record ranks 6

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 31

How much of the world it touches

NVD CPE configurations

4 products in the CPE ranges  ·  without this subject the record ranks 26

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 31

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$259,000over the next 30 days, if this record is yours
Movement-$567,000on 2022-04-01, the last material move, 4 years, 2 months before this reading
Basisassumeda published average, not your estate

$259,000 = $4.99M incident cost x 1 exposure x 0.05184 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

0.05184EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementscoring model changedreceipt
PLATEAU10Minimal movement since 2021-05-29, 1843 days at 0.05, as of 2026-06-15. arc-rules@v1

Foresight · where to check next

CVE-2020-29557BIG-IPCitrix NetScalerMicrosoft WindowsGoogle Chromewebkitgtk15782

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 Siemens SIMATIC Drive Controller family? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

Watch this record

Matches your own product list against every record this index holds, and tells you when one of them moves.

What counts as a move

Set up a watchlist (needs a Practitioner account)

Record your call

Keep your verdict, your reason and the evidence together. The record takes its date when you save it.

AcceptDeferPatch by…Not affectedMitigated

Choose your verdict, then sign in or use an email link. Your first 100 records are free. Evidence is frozen when the record is created.

Private to your organization unless you share it. Put the proof link in your ticket so a reviewer can inspect the basis for your call. See how decision records work.

Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactComplete confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · NVD'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.

First unaffected version, by branchsimatic s7-plcsim advanced 4.0; s7-1200 cpu firmware 4.5.0; s7-1500 cpu firmware 2.9.2; simatic driver controller firmware 2.9.2receipt
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, NVD9.8 CRITICALreceipt
Exploit probability0.05184 · top 8% of all CVEsreceipt
Blast breadth4 products across 1 vendorderived
Assigned bysiemensreceipt
Recorded changes21 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productSiemens SIMATIC Drive Controller family; Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants); Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS…receipt
Published rangessiemens simatic driver controller firmware < 2.9.2; siemens s7-1200 cpu firmware < 4.5.0; siemens s7-1500 cpu firmware < 2.9.2; siemens simatic s7-plcsim advanced < 4.0receipt

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.

Did this affect your environment?Answering needs an account.

What it is stated by the CNA

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SINAMICS PERFECT HARMONY GH180 Drives (Drives manufactured before 2021-08-13), SINUMERIK MC (All versions < V6.15), SINUMERIK ONE (All v receipt

Read the rest of the CNA's description

ersions < V6.15). Affected devices are vulnerable to a memory protection bypass through a specific operation. A remote unauthenticated attacker with network access to port 102/tcp could potentially write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks.

NVD's analysis a second authority

severity
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
weakness
CWE-119
affected versions
siemens simatic driver controller firmware < 2.9.2; siemens s7-1200 cpu firmware < 4.5.0; siemens s7-1500 cpu firmware < 2.9.2; and 1 more, listed in full below
also scored by
9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself cert-portal.siemens.com cert-portal.siemens.com cert-portal.siemens.com receipt

Dated events

2022-02-04EPSS moved 0.05 to 0.122022-04-01EPSS moved 0.12 to 0.01

Movement the material steps

29 May 20210.00523
4 Feb 20220.12492 · crossed 0.10
1 Apr 20220.01136 · crossed 0.10
7 Mar 20230.00486 · scoring model v2023.03.01
17 Mar 20250.00411 · scoring model v2025.03.14
15 Jun 20260.05184 · scoring model v2026.06.15
Show all 21 observations
29 May 20210.00523
14 Jul 20210.01046
6 Jan 20220.04526
4 Feb 20220.12492
1 Apr 20220.01136
7 Mar 20230.00486
2 Jan 20240.00477
11 Feb 20240.00526
17 Dec 20240.00457
17 Mar 20250.00411
29 Mar 20250.00691
30 Mar 20250.00411
18 Oct 20250.00217
27 Oct 20250.00186
18 Nov 20250.01375
21 Nov 20250.00186
22 Nov 20250.00159
27 Nov 20250.00302
18 Feb 20260.0041
19 Feb 20260.00302
15 Jun 20260.05184

21 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 0.05184Published2021-05-28Index as of2026-06-15

The record had been public for 5 years when this index was last written.

Published 2021-05-28 receipt · Index as of 2026-06-15 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-2020-29557matches 8 of 8KEV listed · 2021receipt
CVE-2021-22991 · BIG-IPmatches 8 of 9KEV listed · 2021receipt
CVE-2023-4966 · Citrix NetScaler ADCmatches 7 of 9KEV listed · 2023receipt
CVE-2020-0796 · Microsoft Windows 10 Version 1903 for 32-bit…matches 7 of 9KEV listed · 2020receipt
CVE-2026-3910 · Google Chromematches 7 of 9KEV listed · 2026receipt
CVE-2019-8720 · webkitgtkmatches 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.

Siblings and hubs

Records related to this one

Browse the index from here

These are index-wide views, not findings about CVE-2020-15782.

What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.