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CVE-2026-87686

Quick assessment

Affected
Brocade Fabric OS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Brocade Fabric OS 10.0.1 之前的版本中，Web 服务器管理接口存在身份验证和访问控制绕过漏洞。Web 调度程序使用客户端提供的 HTTP Host 头而不是实际的传输层源 IP 地址，来评估内部管理 VLAN 的信任决策。成功利用此漏洞攻击者可以绕过基于 IP 的访问控制列表（ACLs），并在无需身份验证的情况下获取敏感的设备元数据（例如设备型号、序列号、硬件修订版及固件版本）。

CVSS 5.3 · Medium
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I. Basic Information for CVE-2026-87686

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Brocade Fabric OS 0 ~ 10.0.1 -

II. Public POCs for CVE-2026-87686

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III. Intelligence Information for CVE-2026-87686

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Other References for CVE-2026-87686 (1)

Same Patch Batch · Brocade · 2026-10-08 · 48 CVEs total

CVE-2026-87684 8.7 HIGH Brocade Fabric<10.0.1 SNMP守护进程栈缓冲区溢出漏洞
CVE-2026-87682 8.6 HIGH Brocade Fabric OS<10.0.1命令注入漏洞
CVE-2026-87683 8.6 HIGH Brocade Fabric OS堆缓冲区溢出漏洞
CVE-2026-87666 8.6 HIGH Brocade Fabric OS 9.2.2d/10.0.0a1 OS命令注入漏洞
CVE-2026-87679 8.5 HIGH Brocade Fabric OS<10.0.1堆溢出漏洞
CVE-2026-94586 8.5 HIGH Brocade Fabric OS命令注入漏洞（低于9.2.2d/10.0.0a1）
CVE-2026-94581 8.5 HIGH Brocade Fabric OS 9.2.2d前及10.0.0-10.0.0a1远程命令注入漏洞
CVE-2026-87664 8.5 HIGH Brocade Fabric OS会话伪造漏洞
CVE-2026-87674 8.5 HIGH Brocade Fabric OS本地提权漏洞（9.2.2d/10.0.0）
CVE-2026-87688 8.5 HIGH Brocade Fabric OS远程命令执行漏洞
CVE-2026-87680 8.5 HIGH Brocade Fabric OS命令注入漏洞
CVE-2026-87687 8.5 HIGH Brocade Fabric OS 垂直提权与越权漏洞
CVE-2026-87685 8.4 HIGH Brocade Fabric OS任意文件操纵漏洞
CVE-2026-87667 8.4 HIGH Brocade Fabric OS参数注入漏洞
CVE-2026-5047 8.2 HIGH Brocade SANnav日志信息泄露漏洞
CVE-2026-94585 7.7 HIGH Brocade Fabric OS MXG610认证绕过漏洞
CVE-2026-94578 7.5 HIGH Brocade Fabric OS授权逻辑漏洞
CVE-2026-94577 7.3 HIGH Brocade Fabric OS提权漏洞（<9.2.2d/10.0.0系列）
CVE-2026-87675 7.3 HIGH Brocade Fabric OS OS命令注入漏洞
CVE-2026-87681 7.1 HIGH Brocade Fabric OS<10.0.1访问控制绕过漏洞

Showing top 20 of 48 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Fabric OS
Same vendor: Brocade
Same weakness: CWE-290

V. Comments for CVE-2026-87686

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