Cyber Resilience

CVE-2025-41692

Crypto Weakness in Phoenixcontact Fl Switch 2708 Pn Firmware ≤ 3.50

Published
09 December 2025
Modified
19 December 2025
CVSS Score v3.1 6.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N
EPSS Score 0.0029 21th percentile
Risk Priority 44 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2025-41692 is a medium-severity Use of Password Hash With Insufficient Computational Effort (CWE-916) vulnerability in Phoenixcontact Fl Switch 2303-8Sp1. Its CVSS base score is 6.8 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Brute Force (T1110); ranked at the 21th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to SC-13 (Cryptographic Protection) and IA-5 (Authenticator Management) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

A high privileged remote attacker with admin privileges for the webUI can brute-force the "root" and "user" passwords of the underlying OS due to a weak password generation algorithm.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1110 Brute Force Credential Access
Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.
T1110.002 Password Cracking Credential Access
Adversaries may use password cracking to attempt to recover usable credentials, such as plaintext passwords, when credential material such as password hashes are obtained.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-41752Same product: Phoenixcontact Fl Nat 2008
CVE-2025-41694Same product: Phoenixcontact Fl Nat 2008
CVE-2025-41748Same product: Phoenixcontact Fl Nat 2008
CVE-2025-41695Same product: Phoenixcontact Fl Nat 2008
CVE-2025-41697Same product: Phoenixcontact Fl Nat 2008
CVE-2025-41746Same product: Phoenixcontact Fl Nat 2008
CVE-2025-41751Same product: Phoenixcontact Fl Nat 2008
CVE-2025-41745Same product: Phoenixcontact Fl Nat 2008
CVE-2025-41696Same product: Phoenixcontact Fl Nat 2008
CVE-2025-41747Same product: Phoenixcontact Fl Nat 2008

Affected Assets

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 2208c firmware
≤ 3.50
phoenixcontact
fl switch 2208 pn firmware
≤ 3.50
phoenixcontact
fl switch 2208 firmware
≤ 3.50
phoenixcontact
fl switch 2207-fx sm firmware
≤ 3.50
phoenixcontact
fl switch 2207-fx firmware
≤ 3.50
+59 more product configuration(s) — see NVD for full list

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V11.4.2

Mitigating Controls (NIST 800-53 r5) AI

Cryptographic protection mandates selection and use of approved algorithms whose parameters can include sufficient work factors for password hashing.

Authenticator management requires secure generation, distribution, and storage of passwords, directly enforcing computationally expensive hashing schemes.

Protection of information at rest requires cryptographic safeguards on stored password hashes, reducing exposure to offline cracking.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.DS-01 mostly match
prevents

Proper password hashing is a direct instance of using cryptographic hashes to protect data-at-rest.

PR.PS-06 mostly match
prevents

Secure development practices explicitly include selection and configuration of strong, computationally expensive password hashes.

PR.AA-03 partial match
prevents

Authentication policies may reference password handling but do not address storage or computational cost of hashes.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

degrades

Requires secure handling of authentication information, which includes choosing strong password hashing schemes.

prevents

Requires appropriate use of cryptography, which encompasses selecting strong hashing algorithms for passwords.

prevents

Secure coding practices include implementing password storage with adequate computational effort.

degrades

Mandates secure authentication mechanisms, directly addressing the need for computationally strong password hashes.

References