CVE-2026-87428

Credential disclosure via unredacted REST responses

Published Oct 8, 2026 · Updated Oct 8, 2026

Credential exposure in Brocade ASCG before 3.5.0 allows local users to read SANnav management credentials via REST requests. The ServerHandler component returns stored credentials in an unredacted REST endpoint response. Exploitation requires access to the ASCG VM and the SANnav host network namespace; exposed credentials enable compromise of connected SANnav servers or managed Fibre Channel switches.

CVSS severity8.4
High
EPSS probability0.10%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Credential exposure in Brocade ASCG before 3.5.0 allows local users to read SANnav management credentials via REST requests. The ServerHandler component returns stored credentials in an unredacted REST endpoint response. Exploitation requires access to the ASCG VM and the SANnav host network namespace; exposed credentials enable compromise of connected SANnav servers or managed Fibre Channel switches.

The record

CVE
CVE-2026-87428
Published
Oct 8, 2026
Updated
Oct 8, 2026
Vendor
Brocade Communications Systems
Product
Brocade Active Support Connectivity Gateway
Classifications
CWE-312, CWE-522, T1552
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.5.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Brocade Communications Systems · Brocade Active Support Connectivity Gatewayversion=0 <3.5.0

Published CVSS scores

8.4BroadcomCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-312Cleartext Storage of Sensitive Information
CWE-522Insufficiently Protected Credentials
T1552Unsecured Credentials

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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