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🛡️ CVE-2023-23451 — fx0-gent00000-firmware

🔴 CVSS 9.8 — Critical ✅ No Known Exploit CWE-477 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

The Flexi Classic and Flexi Soft Gateways SICK UE410-EN3 FLEXI ETHERNET GATEW. with serial number <=2311xxxx all Firmware versions, SICK UE410-EN1 FLEXI ETHERNET GATEW. with serial number <=2311xxxx all Firmware versions, SICK UE410-EN3S04 FLEXI ETHERNET GATEW. with serial number <=2311xxxx all Firmware versions, SICK UE410-EN4 FLEXI ETHERNET GATEW. with serial number <=2311xxxx all Firmware versions, SICK FX0-GENT00000 FLEXISOFT EIP GATEW. with serial number <=2311xxxx with Firmware <=V2.11.0, SICK FX0-GMOD00000 FLEXISOFT MOD GATEW. with serial number <=2311xxxx with Firmware <=V2.11.0, SICK FX0-GPNT00000 FLEXISOFT PNET GATEW. with serial number <=2311xxxx with Firmware <=V2.12.0, SICK FX0-GENT00030 FLEXISOFT EIP GATEW.V2 with serial number <=2311xxxx all Firmware versions, SICK FX0-GPNT00030 FLEXISOFT PNET GATEW.V2 with serial number <=2311xxxx all Firmware versions and SICK FX0-GMOD00010 FLEXISOFT MOD GW with serial number <=2311xxxx with Firmware <=V2.11.0 all have Telnet enabled by factory default. No password is set in the default configuration.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: High — total loss, or loss the attacker controls.
  • Integrity impact: High — total loss, or loss the attacker controls.
  • Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2023-23451 is classified as CWE-477: Use of Obsolete Function. The code uses deprecated or obsolete functions, which suggests that the code has not been actively reviewed or maintained.

Affected software

CVE-2023-23451 is recorded against 10 packages.

  • fx0-gent00000-firmware (fixed in 2.11.0)
  • fx0-gent00030-firmware
  • fx0-gmod00000-firmware (fixed in 2.11.0)
  • fx0-gmod00010-firmware (fixed in 2.11.0)
  • fx0-gpnt00000-firmware (fixed in 2.12.0)
  • fx0-gpnt00030-firmware
  • ue410-en1-firmware
  • ue410-en3-firmware
  • ue410-en3s04-firmware
  • ue410-en4-firmware

Timeline and source

Published on 19 April 2023 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

sick.com
sick.com

Other advisories for this package

fx0-gent00000-firmware has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-477: Use of Obsolete Function) in other software:

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-477
Public Exploit ✅ No
Source NVD
Published 2023-04-19
Updated 2026-08-20
Modified 2026-06-17
Fix URL N/A

Affected Packages

Software From version Fixed in
fx0-gent00000-firmware — 2.11.0
fx0-gent00030-firmware — —
fx0-gmod00000-firmware — 2.11.0
fx0-gmod00010-firmware — 2.11.0
fx0-gpnt00000-firmware — 2.12.0
fx0-gpnt00030-firmware — —
ue410-en1-firmware — —
ue410-en3-firmware — —
ue410-en3s04-firmware — —
ue410-en4-firmware — —

References

Vendor Advisory https://sick.com/psirt
Vendor Advisory https://sick.com/psirt

Similar Threats

Exploit Protection

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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