vciy

CVE-2023-6448

INDEX BUILT · 2026-09-20

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Unitronics VisiLogic uses a default administrative password

CVE-2023-64484 of 4 sources documented this
80

rank 80 = 40 + 25 + 0 + 9 + 6

rank@v1 · act now

Someone is already using it

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

EPSS 0.02072 · CISA KEV listed  ·  without this subject the record ranks 40

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 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 80

How much of the world it touches

NVD CPE configurations

17 products in the CPE ranges  ·  without this subject the record ranks 71

Someone else already set the date

CISA KEV remediation due date

CISA remediation date held  ·  without this subject the record ranks 74

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$103,000over the next 30 days, if this record is yours
Movement+$422,000on 2024-12-17, the last material move, 1 year, 8 months before this reading
Basisassumeda published average, not your estate

$103,000 = $4.99M incident cost x 1 exposure x 0.02072 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

0.02072EPSSKEV · LISTED
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationin the wild · KEVreceipt
Defensefix version namedreceipt
Movementdoubled within 72hreceipt
PLATEAU10Minimal movement since 2026-06-15, 81 days at 0.02, as of 2026-09-04. arc-rules@v1

Foresight · where to check next

Apache CouchDBApache AirflowTeleMessageApache Superset6448

This record is one instance of CWE-1188, initialization of a resource with an insecure default. The index holds 341 prior instances of this class, 4 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 Unitronics VisiLogic? 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 confidentiality, integrity and availability lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-1188 Initialization of a Resource with an Insecure Defaultreceipt
Published consequencesCWE-1188: Other: Varies by Context[email protected]
Ransomware campaign useUnknown to CISAreceipt

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in9.9.00receipt
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 2023-12-18receipt
CISA required actionApply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.receipt
Published to CISA KEV6 daysderived

Exploit Status & Known PoCs a ladder, not a score

Current rung: Exploited in the wild · CISA KEV listed, 2023-12-11.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed2023-12-11receipt
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA9.8 CRITICALreceipt
CVSS, NVD9.8 CRITICALreceipt
Exploit probability0.02072 · top 19% of all CVEsreceipt
Blast breadth15 products across 1 vendorderived
Assigned bycisa-cgreceipt
Recorded changes41 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productUnitronics VisiLogicreceipt
Published rangesunitronics vision1210 firmware < 12.38; unitronics vision1040 firmware < 12.38; unitronics vision700 firmware < 12.38; unitronics vision570 firmware < 12.38receipt
Show all 17 published ranges
unitronics vision1210 firmware < 12.38
unitronics vision1040 firmware < 12.38
unitronics vision700 firmware < 12.38
unitronics vision570 firmware < 12.38
unitronics vision560 firmware < 12.38
unitronics vision430 firmware < 12.38
unitronics vision350 firmware < 12.38
unitronics vision130 firmware < 12.38
unitronics vision230 firmware < 12.38
unitronics vision280 firmware < 12.38
unitronics vision290 firmware < 12.38
unitronics vision530 firmware < 12.38
unitronics vision120 firmware < 12.38
unitronics visilogic < 9.9.00
unitronics samba 3.5 firmware < 12.38
unitronics samba 4.3 firmware < 12.38
unitronics samba 7 firmware < 12.38
Fixed in9.9.00receipt

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 interactionCISA KEV listingadded 12-11 · due 12-18Unitronics VisiLogicCWE-1188 weaknessFull compromise (C/I/A)C:H / I:H / A:Hmandates remediationexploits CWE-1188data compromise

What it is stated by the CNA

Unitronics VisiLogic before version 9.9.00, used in Vision and Samba PLCs and HMIs, uses a default administrative password. An unauthenticated attacker with network access can take administrative control of a vulnerable system. receipt

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-1188; CWE-798
affected versions
unitronics vision1210 firmware < 12.38; unitronics vision1040 firmware < 12.38; unitronics vision700 firmware < 12.38; and 14 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 cisa.gov unitronicsplc.com downloads.unitronicsplc.com downloads.unitronicsplc.com receipt

Dated events

2023-12-11Added to CISA KEV2023-12-18CISA remediation due2024-12-17EPSS moved 0.05 to 0.132025-03-19EPSS moved 0.16 to 0.482026-06-15EPSS moved 0.13 to 0.02

Movement the material steps

6 Dec 20230.00044
17 Dec 20240.13284 · crossed 0.10
17 Mar 20250.16159 · scoring model v2025.03.14
19 Mar 20250.47879
20 Mar 20250.16159
27 Mar 20250.47879
28 Mar 20250.16159
29 Mar 20250.47879
30 Mar 20250.16159
15 Jun 20260.02089 · crossed 0.10 · scoring model v2026.06.15
28 Aug 20260.02072

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

Show all 30 observations
6 Dec 20230.00044
12 Dec 20230.01855
13 Dec 20230.01442
14 Dec 20230.04464
20 Dec 20230.06843
27 Jun 20240.03937
11 Oct 20240.03454
4 Nov 20240.02932
11 Dec 20240.04827
17 Dec 20240.13284
6 Jan 20250.15250
13 Feb 20250.11803
17 Mar 20250.16159
19 Mar 20250.47879
20 Mar 20250.16159
27 Mar 20250.47879
28 Mar 20250.16159
29 Mar 20250.47879
30 Mar 20250.16159
15 Apr 20250.10289
16 Jul 20250.10538
18 Jul 20250.10289
20 Sep 20250.10538
3 Oct 20250.10289
4 Nov 20250.10256
18 Nov 20250.20427
21 Nov 20250.10256
23 Dec 20250.1329
15 Jun 20260.02089
28 Aug 20260.02072

30 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 0.02072Published2023-12-05CISA KEV2023-12-11Index as of2026-09-04

Listed by CISA 6 days after it published, exploit probability more than doubled between 2023-12-13 and 2023-12-14 (0.01442 → 0.04464) and the record had been public for 2 years, 8 months when this index was last written.

Published 2023-12-05 receipt · CISA KEV 2023-12-11 receipt · Index as of 2026-09-04 derived

The pattern, elsewhere

This record is one instance of CWE-1188, initialization of a resource with an insecure default. The index holds 341 prior instances of this class, 4 KEV-listed. The nearest of its KEV-listed records are drawn beside this. [email protected]

CVE-2022-24706 · Apache CouchDBmatches 8 of 10KEV listed · 2022receipt
CVE-2020-13927 · Apache Airflowmatches 8 of 10KEV listed · 2020receipt
CVE-2025-48927 · TeleMessage servicematches 5 of 10KEV listed · 2025receipt
CVE-2023-27524 · Apache Supersetmatches 5 of 10KEV 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

341 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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