vciy

CVE-2026-73542

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.

Multiple SEIKO EPSON printers and scanners contain revoked root certificates

CVE-2026-735423 of 4 sources documented this
9

rank 9 = 0 + 9 + 0 + 0 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.00110  ·  without this subject the record ranks 9

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 3.7, 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 9

How much of the world it touches

NVD CPE configurations

0 products in the CPE ranges  ·  without this subject the record ranks 9

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 9

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$1,320over the next 30 days, if this record is yours
Movementnot heldno dated series to read a change from
Basisassumeda published average, not your estate

$1,320 = $4.99M incident cost x 0.24048551839932833 exposure x 0.0011 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

0.0011EPSSNOT IN KEVas of 2026-09-20
Severity3.7 LOWreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementone observationreceipt
SINGLE READINGOne observation held. There is no shape yet. 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 SEIKO EPSON printers and scanners? 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 · high attack complexityreceipt
ImpactPartial confidentiality lossreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-296 Improper Following of a Certificate's Chain of Trustreceipt
Published consequencesCWE-296: Non-Repudiation: Hide Activities; Integrity, Confidentiality, Availability, Access Control: Gain Privileges or Assume Identity, Execute Unauthorized Code or Commands[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 20 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 CNA3.7 LOWreceipt
Exploit probability0.0011 · top 99% of all CVEsreceipt
Assigned byjpcertreceipt
Recorded changes1 · last 18 Sep 2026derived

Affected & Fixed Versions as published

Affected productSEIKO EPSON CORPORATION Multiple SEIKO EPSON printers and scannersreceipt

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

Multiple SEIKO EPSON printers and scanners contain revoked root certificates. A man-in-the-middle attack may allow an attacker to obtain communication data transmitted by the product. As for the details of the affected products and versions, refer to the vendor's information. receipt

NVD's analysis a second authority

weakness
CWE-296
also scored by
[email protected] 6.3 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X ·…

check it yourself epson.jp jvn.jp receipt

Movement

Only one observation of this value is held, so there is no movement to show yet.

The full biography

Published2026-08-20Index as of2026-08-20
Published 2026-08-20 receipt · Index as of 2026-08-20 derived

Siblings and hubs

Records related to this one

Browse the index from here

These are index-wide views, not findings about CVE-2026-73542.

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.