CVE-2026-87684

A stack-based buffer overflow vulnerability exists in the SNMP daemon request handling of Brocade Fabric versions before 10.0.1. When processing an incoming SNMPv3 packet, an internal statistics gathering handler copies user-supplied context name data into a fixed-size buffer without properly validating the length of the string. A remote, unauthenticated attacker (under default configuration) can exploit this vulnerability by sending a specially crafted SNMPv3 packet, leading to memory corruption, daemon crash (Denial of Service), or potential arbitrary code execution.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - sirt@brocade.com

Published

2026-10-08

Last modified

2026-10-14

Weaknesses

CWE-121

Affected products

• Fabric Operating System (Broadcom)
• Fabric Os (Brocade)

References

• https://support.broadcom.com/external/content/SecurityAdvisories/0/39078