Vulnerability · Published Oct 8, 2026 · Assigned by brocade

CVE-2026-87426

Medium 5.3

In plain English

A medium-severity information exposure 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 0.1% (higher than 4% of all known vulnerabilities).

Severity (CVSS 4.0)5.3Medium

Exploit odds (30 days)0.1%top 96.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

An unauthenticated network-based attacker can query specific internal management endpoints on Brocade ASCG versions before 3.5.0 to enumerate the configuration details and state of managed Brocade Fabric OS (FOS) switches. This results in the unauthorized disclosure of the customer's SAN fabric management topology and switch connectivity attributes.

Affected products (as reported)

Vendor	Product	Versions
Brocade	Brocade Active Support Connectivity Gateway	0 – before 3.5.0

Weakness: CWE-200 · Vector: 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

References

https://support.broadcom.com/external/content/SecurityAdvisories/0/38393