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VULNERABILITIES

CVE-2026-87686 Details

Description

An authentication and access control bypass vulnerability exists in the web server management interface of Brocade Fabric OS versions before 10.0.1. The web dispatcher routine evaluates internal management VLAN trust decisions using the client-supplied HTTP host header instead of the actual socket transport layer source IP address. Successful exploitation allows the attacker to bypass IP-filtering access control lists (ACLs) and obtain sensitive device metadata (such as model, serial number, hardware revision, and firmware version) without authentication.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://support.broadcom.com/external/content/SecurityAdvisories/0/39080 [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-290Authentication Bypass by Spoofing[email protected]

Affected Products

ProductVersions
broadcom fabric operating system
< 10.0.1

CPE

  • cpe:2.3:o:broadcom:fabric_operating_system:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-87686
NVD Published Date:
Oct 8, 2026
NVD Last Modified:
Oct 14, 2026
Source:
[email protected]