Vulnerability in Brocade Fabric OS

[ Description ]Official description

An out-of-bounds memory read vulnerability exists in the web management daemon of Brocade Fabric OS versions before 10.0.1. Unauthenticated HTTP endpoints process specific URL query parameters without validating array index boundaries or performing numerical range checks. An unauthenticated remote attacker can exploit this issue by sending a single, crafted HTTP request containing extreme numerical values in the query string. This causes an invalid memory dereference, resulting in a crash of the web management process (Denial of Service) and potential temporary management-plane disruption.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• NCSC-NL16 Oct 2026NCSC-2026-0432

  Vulnerabilities fixed in HPE Brocade Fabric OS Translated from Dutch

  Probability/damage M/HCVE-2026-87659CVE-2026-87660CVE-2026-87661+31 more CVEs
• BSI CERT-Bund7 Oct 2026WID-SEC-2026-3817

  Broadcom Fabric OS: Multiple vulnerabilities Translated from German

  CVE-2026-94580CVE-2026-94575CVE-2026-87673+31 more CVEs

[ References ]References

• support.broadcom.com/external/content/SecurityAdvisories/0/39141Vendor Advisory