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CVE-2020-7548

INDEX BUILT · 2026-09-20

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A CWE-330 - Use of Insufficiently Random Values vulnerability exists in Smartlink, PowerTag, and Wiser Series Gateways (see security notification for…

CVE-2020-75484 of 4 sources documented this
32

rank 32 = 0 + 25 + 0 + 7 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.01444  ·  without this subject the record ranks 32

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 7

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 32

How much of the world it touches

NVD CPE configurations

7 products in the CPE ranges  ·  without this subject the record ranks 25

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 32

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$72,100over 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

$72,100 = $4.99M incident cost x 1 exposure x 0.01444 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

0.01444EPSSNOT IN KEVas of 2026-09-20
Severity9.8 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2021-04-14, 1962 days at 0.01, as of 2026-08-28. 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

Running Smartlink, PowerTag, and Wiser Series…? 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 · NVD's vectorreceipt
Weakness classCWE-330 Use of Insufficiently Random Valuesreceipt
Published consequencesCWE-330: Confidentiality, Other: Other; Access Control, Other: Bypass Protection Mechanism, Other; Access Control: Bypass Protection Mechanism, Gain Privileges or Assume Identity[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 branchacti9 powertag link firmware 001.008.007; acti9 powertag link hd firmware 001.008.007; acti9 smartlink el b firmware 1.2.1; acti9 smartlink si b firmware 002.004.002…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.

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 probability0.01444 · top 28% of all CVEsreceipt
Blast breadth7 products across 1 vendorderived
Assigned byschneiderreceipt
Recorded changes13 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productSmartlink, PowerTag, and Wiser Series Gateways (see security notification for version information)receipt
Published rangesschneider-electric wiser link firmware < 1.5.0; schneider-electric wiser energy firmware < 1.5.0; schneider-electric acti9 smartlink si d firmware < 002.004.002; schneider-electric acti9 smartlink si b firmware < 002.004.002receipt
Show all 7 published ranges
schneider-electric wiser link firmware < 1.5.0
schneider-electric wiser energy firmware < 1.5.0
schneider-electric acti9 smartlink si d firmware < 002.004.002
schneider-electric acti9 smartlink si b firmware < 002.004.002
schneider-electric acti9 powertag link firmware < 001.008.007
schneider-electric acti9 powertag link hd firmware < 001.008.007
schneider-electric acti9 smartlink el b firmware < 1.2.1

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

A CWE-330 - Use of Insufficiently Random Values vulnerability exists in Smartlink, PowerTag, and Wiser Series Gateways (see security notification for version information) that could allow unauthorized users to login. 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-330
affected versions
schneider-electric wiser link firmware < 1.5.0; schneider-electric wiser energy firmware < 1.5.0; schneider-electric acti9 smartlink si d firmware < 002.004.002; and 4 more, listed in full below

check it yourself se.com receipt

Dated events

2022-02-04EPSS moved 0.02 to 0.092022-04-01EPSS moved 0.09 to 0.01

Movement the material steps

14 Apr 20210.00416
7 Mar 20230.00201 · scoring model v2023.03.01
17 Mar 20250.00591 · scoring model v2025.03.14
15 Jun 20260.01415 · scoring model v2026.06.15
28 Aug 20260.01444
Show all 13 observations
14 Apr 20210.00416
6 Jan 20220.0184
4 Feb 20220.09029
1 Apr 20220.00885
7 Mar 20230.00201
17 Aug 20230.00222
17 Dec 20240.00290
17 Mar 20250.00591
29 Mar 20250.0046
30 Mar 20250.00591
15 Jun 20260.01415
6 Jul 20260.01427
28 Aug 20260.01444

13 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 0.01444Published2020-12-01Index as of2026-08-28

The record had been public for 5 years, 8 months when this index was last written.

Published 2020-12-01 receipt · Index as of 2026-08-28 derived

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