What is CVE-2023-5246?

CVE-2023-5246 is a high-severity vulnerability in Sick Fx0-Gent00000, classified under Improper Authentication. CVSS score: 8.8/10. Published 2023-10-23.

How severe is CVE-2023-5246?

High severity. CVSS v3 base score is 8.8 out of 10.

Auth bypass in Sick Fx0-Gent00000

CVE-2023-5246

Authentication Bypass by Capture-replay in SICK Flexi Soft Gateways with Partnumbers 1044073, 1127717, 1130282, 1044074, 1121597, 1099832, 1051432, 1127487, 1069070, 1112296, 1044072, 1121596, 1099830 allows an unauthenticated remote attacker to potentially impact the availability, integrity and confidentiality of the gateways via an authentication bypass by capture-replay.

Vulnerability class: Broken Authentication

Published 2023-10-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.010 (62.7th percentile), scored 2026-10-26.

Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 62.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.010 · change: +0.002

Affected products

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

sick.com/psirt (issue-tracking, Vendor Advisory)
sick.com/.well-known/csaf/white/2023/sca-2023-0011.pdf (vendor-advisory, Mitigation, Vendor Advisory)
sick.com/.well-known/csaf/white/2023/sca-2023-0011.json (x_csaf, Vendor Advisory)

Frequently asked questions

What is CVE-2023-5246?: CVE-2023-5246 is a high-severity vulnerability in Sick Fx0-Gent00000, classified under Improper Authentication. CVSS score: 8.8/10. Published 2023-10-23.
How severe is CVE-2023-5246?: High severity. CVSS v3 base score is 8.8 out of 10.