CVE-2026-85423: A vulnerability has been identified in the data collection service of Brocade ASCG versions before 3.5.0

Q: How do I fix CVE-2026-85423?

brocade active support connectivity gateway: upgrade to 3.5.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-85423 being exploited?

CVE-2026-85423 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-85423 affect?

CVE-2026-85423 affects brocade active support connectivity gateway. Severity is high (CVSS 8.8). A vulnerability has been identified in the data collection service of Brocade ASCG versions before 3.5.0. An API endpoint within the data collector service fails to perform authentication or authorization checks on incoming requests. An att

Routine

HIGH 8.8UPGRADE

CVE-2026-85423 is a high-severity flaw (CVSS 8.8) affecting brocade active support connectivity gateway. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been identified in the data collection service of Brocade ASCG versions before 3.5.0. An API endpoint within the data collector service fails to perform authentication or authorization checks on incoming requests. An attacker with network access to the service can instruct the application to establish SSH connections to arbitrary hosts and execute arbitrary system commands, effectively turning the appliance into an unauthentic

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.2% (top 86%)
CISA exploited list	No
Weakness	CWE-306
Published	2026-10-08
Last modified	2026-10-14

Publisher (CNA): Brocade Communications Systems, LLC · Vendor: broadcom

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-08 07:16 UTCPublished CVE record published
2026-10-14 18:48 UTCUpdated Record last modified

broadcom brocade active support connectivity gateway UPGRADE

Affected: < 3.5.0

Fixed in: 3.5.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy brocade-active-support-connectivity-gateway || rpm -q brocade-active-support-connectivity-gateway || brocade-active-support-connectivity-gateway --version

2. UPGRADE to 3.5.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade brocade-active-support-connectivity-gateway

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade brocade-active-support-connectivity-gateway

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-85423?

brocade active support connectivity gateway: upgrade to 3.5.0. Exact commands for each OS are on this page.

Is CVE-2026-85423 being exploited?

CVE-2026-85423 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-85423 affect?

CVE-2026-85423 affects brocade active support connectivity gateway. Severity is high (CVSS 8.8). A vulnerability has been identified in the data collection service of Brocade ASCG versions before 3.5.0. An API endpoint within the data collector service fails to perform authentication or authorization checks on incoming requests. An att

How urgent is CVE-2026-85423?

Priority 34/100. High severity

Related CVEs

CVE-2023-5649 MEDIUM 5.5 UPGRADE An Improper Input Validation vulnerability for the registered case credentials in Brocade ASCG before v3.0 cou
CVE-2023-5648 MEDIUM 6.1 UPGRADE In Brocade ASCG before Brocade ASCG v3.0, several security-related HTTP Headers were missing in various Brocad
CVE-2026-87428 HIGH 7.8 UPGRADE In Brocade ASCG before 3.5.0, a local unauthorized user on the ASCG VM who can issue a request to the SANnav
CVE-2026-87426 MEDIUM 4.3 UPGRADE An unauthenticated network-based attacker can query specific internal management endpoints on Brocade ASCG ver
CVE-2026-87425 MEDIUM 6.8 UPGRADE An unauthenticated remote attacker can modify the TLS client trust store in Brocade ASCG versions before 3.5.0

References

← Back to latest CVEs