CVE-2026-87674 Command injection in Fabric OS
Local attackers can escalate privileges by injecting commands into logging configurations via insecure IPC channels in Brocade Fabric OS.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-87674?
CVE-2026-87674 is a high-severity command injection vulnerability in Broadcom Fabric Operating System, published on 8 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A local privilege escalation vulnerability exists in the system logging daemon of Brocade Fabric OS versions before 9.2.2d and 10.0.0 through 10.0.0a1. Insufficient access controls on internal inter-process communication (IPC) channels allow an unprivileged local user to submit malformed logging configurations. Due to improper input sanitization during configuration file generation, an attacker can inject arbitrary directives that execute with elevated privileges when the logging service reloads, leading to local privilege escalation.
Weakness: CWE-78
Which versions are affected by CVE-2026-87674?
It affects 1 product.
Products include Broadcom Fabric Operating System.
How do I fix CVE-2026-87674?
No fix has been published for CVE-2026-87674 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-87674 being exploited?
There is no known exploitation of CVE-2026-87674 in the wild and no public exploit code.
Other vulnerabilities in Broadcom Fabric Operating System
Sources
Also known as GHSA-v8pj-6vv4-8833.