CVE-2023-5246 Auth bypass in FX0-GENT00000

High 8.8 Published 23 Oct 2023 Updated 1 Jun 2026

Unauthenticated remote attackers can bypass authentication via capture-replay, compromising gateway availability, integrity, and confidentiality.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-5246?

CVE-2023-5246 is a high-severity authentication bypass vulnerability in SICK AG FX0-GENT00000, published on 23 Oct 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-287

Which versions are affected by CVE-2023-5246?

It affects 13 products.

Products include Sick Fx0-Gent00000 Firmware, Sick Fx0-Gent00010 Firmware, Sick Fx0-Gent00030 Firmware, Sick Fx0-Gepr00000 Firmware, Sick Fx0-Gepr00010 Firmware, Sick Fx0-Get00000 Firmware and 7 more.

How do I fix CVE-2023-5246?

No fix has been published for CVE-2023-5246 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-5246 being exploited?

There is no known exploitation of CVE-2023-5246 in the wild and no public exploit code.

Sources

Also known as GHSA-9w2j-4f43-pmmh.