CVE-2026-85421
Quick assessment
Affected
Brocade Brocade Active Support Connectivity Gateway
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 ASCG 3.5.0 之前的版本中发现了一个关键的安全漏洞。该 HTTPS 服务未能对传入请求正确执行身份验证或访问控制检查。拥有网络访问权限的未认证攻击者可以发出控制命令、更改集群状态并修改系统配置，从而导致流媒体服务控制平面被完全攻陷。
Possible ATT&CK Techniques 3 AI
T1496 · Resource Hijacking T1548 · Abuse Elevation Control Mechanism T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-85421
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A critical security vulnerability has been identified in Brocade ASCG versions before 3.5.0. The HTTPS service fails to properly enforce authentication or access control checks on incoming requests. An unauthenticated attacker with network access can issue control commands, alter cluster states, and modify system configurations, leading to a complete compromise of the streaming service control plane.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Brocade | Brocade Active Support Connectivity Gateway | 0 ~ 3.5.0 | - |
|
II. Public POCs for CVE-2026-85421
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Other References for CVE-2026-85421 (1)
Same Patch Batch · Brocade · 2026-10-08 · 61 CVEs total
| CVE-2026-85489 | 8.7 HIGH | Brocade ASCG<3.5.0 认证绕过漏洞 |
| 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-2026-87424 | 8.6 HIGH | Brocade ASCG<3.5.0认证绕过漏洞 |
| 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-2026-85487 | 8.6 HIGH | Brocade ASCG<3.5.0路径穿越致任意文件操作 |
| CVE-2026-85486 | 8.6 HIGH | Brocade ASCG <3.5.0 任意代码执行漏洞 |
| CVE-2026-85423 | 8.6 HIGH | Brocade ASCG 3.5.0前未授权命令执行漏洞 |
| CVE-2026-87666 | 8.6 HIGH | Brocade Fabric OS 9.2.2d/10.0.0a1 OS命令注入漏洞 |
| CVE-2026-94581 | 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-2026-87679 | 8.5 HIGH | Brocade Fabric OS<10.0.1堆溢出漏洞 |
| 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-2026-87688 | 8.5 HIGH | Brocade Fabric OS远程命令执行漏洞 |
| CVE-2026-87674 | 8.5 HIGH | Brocade Fabric OS本地提权漏洞（9.2.2d/10.0.0） |
| CVE-2026-87664 | 8.5 HIGH | Brocade Fabric OS会话伪造漏洞 |
| CVE-2026-94586 | 8.5 HIGH | Brocade Fabric OS命令注入漏洞（低于9.2.2d/10.0.0a1） |
| CVE-2026-87667 | 8.4 HIGH | Brocade Fabric OS参数注入漏洞 |
| CVE-2026-87428 | 8.4 HIGH | Brocade ASCG 3.5.0前凭据泄露漏洞 |
| CVE-2026-87685 | 8.4 HIGH | Brocade Fabric OS任意文件操纵漏洞 |
Showing top 20 of 61 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
V. Comments for CVE-2026-85421
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