CVE-2023-23451

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-04-19 · updated 2026-06-17
Weakness: CWE-477

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.

Affected products

SICK Fx0-Gent00000 Firmware: through 2.11.0
SICK Fx0-Gent00030 Firmware: all versions
SICK Fx0-Gmod00000 Firmware: through 2.11.0
SICK Fx0-Gmod00010 Firmware: through 2.11.0
SICK Fx0-Gpnt00000 Firmware: through 2.12.0
SICK Fx0-Gpnt00030 Firmware: all versions
SICK Ue410-En1 Firmware: all versions
SICK Ue410-En3 Firmware: all versions
SICK Ue410-En3S04 Firmware: all versions
SICK Ue410-En4 Firmware: all versions

References

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