CVE-2026-87679

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-08 · updated 2026-10-13
Weakness: CWE-122

Description

When Brocade Fabric OS versions before 10.0.1 processes trunk configuration operations, the application parses user-supplied list strings into dynamically allocated heap arrays without enforcing boundary checks on the maximum allowable number of elements. An authenticated administrator can exploit this vulnerability via crafted REST API requests containing an excessive number of list delimiters, causing heap corruption that can result in service crash or arbitrary code execution.

Affected products

Brocade Fabric OS: before 10.0.1 — fixed in 10.0.1

How to fix

Upgrade to a fixed version: Brocade Fabric OS 10.0.1. Check the vendor advisory for mitigations.

References

https://support.broadcom.com/external/content/SecurityAdvisories/0/39073

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