CVE-2023-23453

criticalpriority · track · 39OT risk · elevatedEPSS 0.011 · 65 %ileDEEUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
1.10% (65th) EPSS
CVSS 9.8 · critical
Is it mine?
9 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · nvd · sick_psirt

EPSS · scored 2026-10-27

Missing Authentication for Critical Function in SICK FX0-GENT v3 Firmware Version V3.04 and V3.05 allows an unprivileged remote attacker to achieve arbitrary remote code execution via maliciously crafted RK512 commands to the listener on TCP port 9000.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

No vendor fix yet; a workaround is available.

  • WorkaroundSICK FX0-GENT00000 v3 with Firmware V3.04sick_psirt

    Please make sure that you apply general security practices when operating the FlexiSoft gateways like network segmentation. The following General Security Practices and Operating Guidelines could mitigate the associated security risk.

  • WorkaroundSICK FX0-GENT00000 v3 with Firmware V3.05sick_psirt

    Please make sure that you apply general security practices when operating the FlexiSoft gateways like network segmentation. The following General Security Practices and Operating Guidelines could mitigate the associated security risk.

  • WorkaroundSICK FX0-GENT00010 v3 with Firmware V3.04sick_psirt

    Please make sure that you apply general security practices when operating the FlexiSoft gateways like network segmentation. The following General Security Practices and Operating Guidelines could mitigate the associated security risk.

  • WorkaroundSICK FX0-GENT00010 v3 with Firmware V3.05sick_psirt

    Please make sure that you apply general security practices when operating the FlexiSoft gateways like network segmentation. The following General Security Practices and Operating Guidelines could mitigate the associated security risk.

02

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9
v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Hsecondary · SICK PSIRT DE
v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-306USprimaryCWE-306US
05

affected products (9)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • SCA-2023-0001Bootloader mode vulnerability in Flexi Soft Gateways v32023-02-20csaf · sick_psirtDE

    The SICK PSIRT received a report about a Missing Authentication for Critical Function vulnerability in the firmware of FX0-GPNT v3 and FX0-GENT v3. This vulnerability was introduced with the hardware redesign of the v3 of FX0-GENT and FX0-GPNT as part of the implementation of the RK512 protocol. The RK512 protocol is used to configure the Flexi Soft stations via an exposed TCP port on the Ethernet based gateways.

07

also known as (3)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdnvdsick_psirtNVDCVE.orgMITRE
published 2023-02-20modified 2026-06-17
10

references (5)

External citations — patches, advisories, analysis.

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