Vulnerability in Brocade Fabric OS

[ Description ]Official description

Multiple stack-based buffer overflow vulnerabilities exist in the REST API management component of Brocade Fabric OS versions prior to 10.0.1. When processing API request payloads (such as device configuration attributes or port mapping requests) the REST API service fails to properly validate incoming array counts and string lengths against internal buffer capacities. An authenticated attacker with REST API access can transmit crafted, oversized request parameters to induce memory corruption on the execution stack. This may result in a denial-of-service condition (daemon crash) or potential arbitrary code execution within the management process context.

[ 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

• BSI CERT-Bund6 Oct 2026WID-SEC-2026-3779

  Broadcom Fabric OS: Multiple vulnerabilities Translated from German

  CVE-2026-87681CVE-2026-87684CVE-2026-87687+5 more CVEs

[ References ]References

• support.broadcom.com/external/content/SecurityAdvisories/0/39077Vendor Advisory