Vulnerability · Published Oct 8, 2026 · Assigned by brocade
CVE-2026-87424
High 8.6
In plain English
A high-severity security flaw in Brocade Active Support Connectivity Gateway from Brocade. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).
Severity (CVSS 4.0)8.6High
Exploit odds (30 days)0.2%top 91.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A vulnerability in the SupportLink API authentication component of Brocade ASCG versions prior to 3.5.0 allows an attacker to bypass authentication across deployments due to the use of a hard coded cryptographic key.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Brocade | Brocade Active Support Connectivity Gateway | 0 – before 3.5.0 |
Weakness: CWE-321 · Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N