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CVE-2026-85490

8.8 · HIGH

When Brocade ASCG before 3.5.0 processes support bundle archives ingested from remote compromised endpoints, the application fails to sanitize path traversal sequences contained within archive entr…

Published Oct 8, 2026broadcomCWE-22EPSS 0.31%

Overview

CVE-2026-85490 is a high-severity vulnerability affecting broadcom brocade_active_support_connectivity_gateway. It was published on October 8, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

When Brocade ASCG before 3.5.0 processes support bundle archives ingested from remote compromised endpoints, the application fails to sanitize path traversal sequences contained within archive entries prior to extraction. An unauthenticated remote attacker capable of sending or intercepting ingested archive files can leverage this flaw to write arbitrary files to restricted locations on the underlying host, potentially leading to remote code execution.

Remediation

Check the references section for vendor advisories and patches from broadcom. Update brocade_active_support_connectivity_gateway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
broadcombrocade_active_support_connectivity_gateway>= 0, < 3.5.0Affected

References

Refsupport.broadcom.com/external/content/SecurityAdvisories/0/38389

How CyberStrike helps

Frequently asked questions

What is CVE-2026-85490?

CVE-2026-85490 is a high-severity vulnerability affecting broadcom brocade_active_support_connectivity_gateway. It was published on October 8, 2026 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2026-85490?

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-85490?

Check the references section for vendor advisories and patches from broadcom. Update brocade_active_support_connectivity_gateway to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-85490?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-85490 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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