vciy

CVE-2025-41697

INDEX BUILT · 2026-09-20

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Shell access to UART Console

CVE-2025-416974 of 4 sources documented this
27

rank 27 = 0 + 17 + 0 + 10 + 0

rank@v1 · scheduled

Someone is already using it

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

EPSS 0.00235  ·  without this subject the record ranks 27

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 6.8, from the CNA  ·  without this subject the record ranks 10

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 27

How much of the world it touches

NVD CPE configurations

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

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 27

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$11,700over 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

$11,700 = $4.99M incident cost x 1 exposure x 0.00235 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

0.00235EPSSNOT IN KEVas of 2026-09-20
Severity6.8 MEDIUMreceipt
Harmtotal lossreceipt
Exploitationnone in held sources
Defensefix version namedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2025-12-09, 269 days at 0.00, as of 2026-09-04. 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 Phoenix Contact FL SWITCH 2005? 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.

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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.

Reachneeds physical access · 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-1299 Missing Protection Mechanism for Alternate Hardware Interfacereceipt
Published consequencesCWE-1299: Confidentiality, Integrity, Availability, Access Control: Modify Memory, Read Memory, DoS: Resource Consumption (Other), Execute Unauthorized Code or Commands, Gain Privileges or Assume…[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

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

Fixed in3.50receipt
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 CNA6.8 MEDIUMreceipt
Exploit probability0.00235 · top 85% of all CVEsreceipt
Blast breadth11 products across 1 vendorderived
Assigned byCERTVDEreceipt
Recorded changes13 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productPhoenix Contact FL SWITCH 2005; Phoenix Contact FL SWITCH 2008; Phoenix Contact FL SWITCH 2016; Phoenix Contact FL SWITCH 2105; Phoenix Contact FL SWITCH 2108; Phoenix Contact FL SWITCH 2116…receipt
Published rangesphoenixcontact fl switch 2708 pn firmware < 3.50; phoenixcontact fl switch 2708 firmware < 3.50; phoenixcontact fl switch 2608 pn firmware < 3.50; phoenixcontact fl switch 2608 firmware < 3.50receipt
Show all 20 published ranges
phoenixcontact fl switch 2708 pn firmware < 3.50
phoenixcontact fl switch 2708 firmware < 3.50
phoenixcontact fl switch 2608 pn firmware < 3.50
phoenixcontact fl switch 2608 firmware < 3.50
phoenixcontact fl switch 2516 pn firmware < 3.50
phoenixcontact fl switch 2516 firmware < 3.50
phoenixcontact fl switch 2514-2sfp pn firmware < 3.50
phoenixcontact fl switch 2514-2sfp firmware < 3.50
phoenixcontact fl switch 2512-2gc-2sfp firmware < 3.50
phoenixcontact fl switch 2508 pn firmware < 3.50
phoenixcontact fl switch 2508\/k1 firmware < 3.50
phoenixcontact fl switch 2508 firmware < 3.50
phoenixcontact fl switch 2506-2sfp pn firmware < 3.50
phoenixcontact fl switch 2506-2sfp\/k1 firmware < 3.50
phoenixcontact fl switch 2506-2sfp firmware < 3.50
phoenixcontact fl switch 2504-2gc-2sfp firmware < 3.50
phoenixcontact fl switch 2416 pn firmware < 3.50
phoenixcontact fl switch 2416 firmware < 3.50
phoenixcontact fl switch 2414-2sfx pn firmware < 3.50
phoenixcontact fl switch 2414-2sfx firmware < 3.50
Fixed in3.50receipt

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

Physical accessno credentials, no interactionPhoenix Contact FL NAT 2008CWE-1299 weaknessFull compromise (C/I/A)C:H / I:H / A:Hexploits CWE-1299data compromise

What it is stated by the CNA

An attacker can use an undocumented UART port on the PCB as a side-channel to get root access e.g. with the credentials obtained from CVE-2025-41692. receipt

NVD's analysis a second authority

weakness
CWE-1299
affected versions
phoenixcontact fl switch 2708 pn firmware < 3.50; phoenixcontact fl switch 2708 firmware < 3.50; phoenixcontact fl switch 2608 pn firmware < 3.50; and 17 more, listed in full below
also scored by
[email protected] 6.8 CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

check it yourself certvde.com receipt

Movement the material steps

9 Dec 20250.00018
15 Jun 20260.00198 · scoring model v2026.06.15
4 Sep 20260.00235
Show all 13 observations
9 Dec 20250.00018
15 Dec 20250.00024
10 Jan 20260.00026
15 Feb 20260.00027
10 Apr 20260.00035
7 May 20260.00023
8 May 20260.00022
19 May 20260.00026
15 Jun 20260.00198
8 Jul 20260.00205
28 Jul 20260.0021
6 Aug 20260.0023
4 Sep 20260.00235

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 0.00235Published2025-12-09Index as of2026-09-04

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

Published 2025-12-09 receipt · Index as of 2026-09-04 derived

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What usually comes next

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