CVE-2026-87425

An unauthenticated remote attacker can modify the TLS client trust store in Brocade ASCG versions before 3.5.0. By supplying an unauthorized Certificate Authority (CA) certificate to an unauthenticated management interface, the attacker can cause the system to trust unauthorized certificates, potentially enabling Man-in-the-Middle (MITM) attacks against outbound communications with managed switches and peer nodes.

CVSS 4.0

7.6CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

6.8CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS

0.10% chance of exploitation in the next 30 days; higher than 0% of CVEs (scores of 2026-10-25)

CWE

CWE-295

Published

2026-10-08

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• broadcom:brocade_active_support_connectivity_gateway

References

• https://support.broadcom.com/external/content/SecurityAdvisories/0/38392

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