Vulnerability · Published Oct 8, 2026 · Assigned by brocade

CVE-2026-87673

High 7.0

In plain English

A high-severity OS command injection in Fabric OS from Brocade. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities).

Severity (CVSS 4.0)7.0High
Exploit odds (30 days)1.8%top 21.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

An OS command injection vulnerability exists in maintenance command-line diagnostic utilities on Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. The binary fails to sanitize user-supplied input options when invoking underlying system commands through a shell interpreter. A privileged user with maintenance account access can exploit this issue by supplying crafted parameters, which results in arbitrary OS command execution with root privileges.

Affected products (as reported)

VendorProductVersions
Brocade Fabric OS 0 – before 9.2.2d10.0.0 – through 10.0.0a1

Weakness: CWE-78 · Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References