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Vulnerabilities

Vulnerability · CVE-2026-87424

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…

Published Oct 8, 2026 · catalog updated Oct 14, 2026 · Brocade Brocade Active Support Connectivity Gateway

Last checked Oct 23, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2026-87424. EPSS is 0.19%. Act only if a listed version of Brocade Brocade Active Support Connectivity Gateway is installed.

Gaps on this record

  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.6
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.19%
Remediation
Advisory link
Affected products
cpe broadcom/brocade active support connectivity gateway · vendor Brocade Brocade Active Support Connectivity Gateway

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe broadcom/brocade active support connectivity gatewayversion unspecified
  • vendor Brocade Brocade Active Support Connectivity Gatewayversion unspecified

How to fix CVE-2026-87424

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-87424. EPSS is 0.19%. Act only if a listed version of Brocade Brocade Active Support Connectivity Gateway is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-321. EPSS 0.19%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 8, 2026 · NIST NVD

    Detected

    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.

  2. Oct 14, 2026 · NIST NVD

    Updated

    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.

Sources

  • CIRCL Vulnerability LookupVulnerability recordCVE-2026-87424

    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.

    vulnerability.circl.lu
  • CVE.orgVulnerability recordCVE-2026-87424

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-87424

    30-day exploitation probability 0.19%

    first.org
  • NIST NVDVulnerability recordCVE-2026-87424

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 16, 2026
  • CIRCL Vulnerability LookupOct 14, 2026
  • NIST NVDOct 14, 2026