CVE-2026-87676
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.
Brocade Fabric OS 版本在 10.0.1 之前，其安全库组件中存在一个基于栈的缓冲区溢出漏洞。在解析上传的 X.509 PEM 证书用于管理显示时，系统在将字符串令牌复制到内部内存缓冲区之前，未能正确验证 Authority Key Identifier (AKI) 扩展字段的长度。拥有导入自定义证书权限的认证管理员用户可以提供一个包含故意过大的 AKI 扩展的证书。当系统处理或呈现证书属性时，这会导致栈内存损坏，并通过使管理守护进程崩溃引发拒绝服务（DoS）条件。
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I. Basic Information for CVE-2026-87676
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A stack-based buffer overflow vulnerability exists in the security library component of Brocade Fabric OS versions before 10.0.1. When parsing uploaded X.509 PEM certificates for management display, the system improperly validates the length of the Authority Key Identifier (AKI) extension before copying string tokens into an internal memory buffer. An authenticated user with administrative privileges to import custom certificates can supply a certificate containing an intentionally oversized AKI extension. When the system processes or renders the certificate attributes, this can trigger a stack memory corruption leading to a denial-of-service (DoS) condition by crashing the management daemon.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-87676
| # | POC Description | Source Link | Shenlong Link |
|---|
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Other References for CVE-2026-87676 (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-2026-87671 | 7.1 HIGH | Brocade Fabric OS越界读取致DoS漏洞 |
Showing top 20 of 48 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-87676
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