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CVE-2025-41696

Hardcoded User Password

Published: Dec 9, 2025Updated: Dec 19, 2025 Sources: CVE List NVDCWE-798
NVD MITRE
4.6CVSSMEDIUM
EPSS Score
0.2%
Top 92.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

An attacker can use an undocumented UART port on the PCB as a side-channel with the user hardcoded credentials obtained from CVE-2025-41692 to gain read access to parts of the filesystem of the device.

CVSS Vector Breakdown

AV:PAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:PAttack Vector
Physical
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-798

Affected Products

FL SWITCH 2005Phoenix ContactICS / OT / IoT
FL SWITCH 2008Phoenix ContactICS / OT / IoT
FL SWITCH 2016Phoenix ContactICS / OT / IoT
FL SWITCH 2105Phoenix ContactICS / OT / IoT
FL SWITCH 2108Phoenix ContactICS / OT / IoT
phoenix contactcommercialDEICS / OT / IoTaka phoenixcontact
and 133 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Credential Access
Initial Access
View detailed technique mapping

References

https://certvde.com/de/advisories/VDE-2025-071
certvde.com

Timeline

Published
Dec 9, 2025
Last Updated
Dec 19, 2025

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