vciy

CVE-2023-50736

INDEX BUILT · 2026-09-20

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A vulnerability has been identified in the PostScript interpreter in various Lexmark devices.

CVE-2023-507363 of 4 sources documented this
23

rank 23 = 0 + 23 + 0 + 0 + 0

rank@v1 · backlog

Someone is already using it

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

EPSS 0.00766  ·  without this subject the record ranks 23

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 9.0, 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 23

How much of the world it touches

NVD CPE configurations

0 products in the CPE ranges  ·  without this subject the record ranks 23

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 23

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$38,200over 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

$38,200 = $4.99M incident cost x 1 exposure x 0.00766 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

0.00766EPSSNOT IN KEVas of 2026-09-20
Severity9 CRITICALreceipt
Harmtotal loss · unauthenticatedreceipt
Exploitationnone in held sources
Defenseno fix version held
Movementrisenreceipt
PLATEAU10Minimal movement since 2024-02-28, 929 days at 0.01, as of 2026-09-14. 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 Lexmark? Check your version

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Record your call

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AcceptDeferPatch by…Not affectedMitigated

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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
ImpactComplete confidentiality, integrity and availability loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-131 Incorrect Calculation of Buffer Sizereceipt
Published consequencesCWE-131: Integrity, Availability, Confidentiality: DoS: Crash, Exit, or Restart, Execute Unauthorized Code or Commands, Read Memory, Modify Memory[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 14 Sep 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 CNA9 CRITICALreceipt
Exploit probability0.00766 · top 46% of all CVEsreceipt
Assigned byLexmarkreceipt
Recorded changes18 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productLexmarkreceipt

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 interactionLexmark variousCWE-131 weaknessAdjacent componentsscope changeFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-131scope changedata compromise

What it is stated by the CNA

A memory corruption vulnerability has been identified in PostScript interpreter in various Lexmark devices. The vulnerability can be leveraged by an attacker to execute arbitrary code. receipt

NVD's analysis a second authority

weakness
CWE-131
also scored by
9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

check it yourself lexmark.com receipt

Movement the material steps

28 Feb 20240.00065
17 Mar 20250.00468 · scoring model v2025.03.14
15 Jun 20260.00773 · scoring model v2026.06.15
14 Sep 20260.00766
Show all 18 observations
28 Feb 20240.00065
17 Mar 20250.00468
19 Mar 20250.00624
29 Mar 20250.01397
30 Mar 20250.00624
15 Apr 20250.00198
19 Jul 20250.00269
16 Oct 20250.00295
17 Oct 20250.00226
18 Nov 20250.00673
21 Nov 20250.00111
28 Nov 20250.00108
5 Apr 20260.00141
16 Apr 20260.00191
23 Apr 20260.00197
6 May 20260.00191
15 Jun 20260.00773
14 Sep 20260.00766

18 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 0.00766Published2024-02-28Index as of2026-09-14

The record had been public for 2 years, 6 months when this index was last written.

Published 2024-02-28 receipt · Index as of 2026-09-14 derived

Siblings and hubs

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What usually comes next

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