How severe is CVE-2026-0869?

CVE-2026-0869 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-0869 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-0869?

CVE-2026-0869 affects Broadcom Brocade Active Support Connectivity Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-0869?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-0869 have an EU (EUVD) identifier?

Yes. CVE-2026-0869 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9312.

When was CVE-2026-0869 published?

CVE-2026-0869 was published on 2026-03-03 and last updated on 2026-06-17.

CVE-2026-0869

CVE-2026-0869 is a high-severity vulnerability in Broadcom Brocade Active Support Connectivity Gateway with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-305.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.3
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-9312
Weakness: CWE-305
Affected product: Broadcom Brocade Active Support Connectivity Gateway
Published: 2026-03-03
Last modified: 2026-06-17

Description

Authentication bypass in Brocade ASCG 3.4.0 Could allow an unauthorized user to perform ASCG operations related to Brocade Support Link(BSL) and streaming configuration. and could even disable the ASCG application or disable use of BSL data collection on Brocade switches within the fabric.

Frequently asked questions

What is CVE-2026-0869?: Authentication bypass in Brocade ASCG 3.4.0 Could allow an unauthorized user to perform ASCG operations related to Brocade Support Link(BSL) and streaming configuration. and could even disable the ASCG application or disable use of BSL data collection on Brocade switches within the fabric.
How severe is CVE-2026-0869?: CVE-2026-0869 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-0869 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-0869?: CVE-2026-0869 affects Broadcom Brocade Active Support Connectivity Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-0869?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-0869 have an EU (EUVD) identifier?: Yes. CVE-2026-0869 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-9312.
When was CVE-2026-0869 published?: CVE-2026-0869 was published on 2026-03-03 and last updated on 2026-06-17.

References

https://support.broadcom.com/external/content/SecurityAdvisories/0/37121

Affected products (1)

cpe:2.3:a:broadcom:brocade_active_support_connectivity_gateway:3.4.0:*:*:*:*:*:*:*

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