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Vulnerability record · CVE-2026-0869 · published 3 March 2026

CVE-2026-0869: Broadcom brocade active support connectivity gateway vulnerability

Broadcom · Brocade Active Support Connectivity Gateway

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.

8.3 CVSS 4.0 High EPSS 0.40% · top 68.7% CWE-305 · CWE-305
8.3CVSS 4.0 base score
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.6CVE-2025-7398Broadcom brocade active support connectivity gateway inadequate encryption strength vulnerabilityBrocade ASCG before 3.3.0 allows for the use of medium strength cryptography algorithms on internal ports ports 9000 and 8036.EPSS 0.16%7.6CVE-2024-1509Broadcom brocade active support connectivity gateway vulnerabilityBrocade ASCG before 3.2.0 Web Interface is not enforcing HSTS, as defined by RFC 6797. HSTS is an optional response header that can be configured on …EPSS 0.37%7.1CVE-2025-6391Broadcom brocade active support connectivity gateway sensitive information in log file vulnerabilityBrocade ASCG before 3.3.0 logs JSON Web Tokens (JWT) in log files. An attacker with access to the log files can withdraw the unencrypted tokens with …EPSS 0.24%8.8CVE-2026-81578PaperCut MF/NG web interface access control flaw allows unauthenticated config changesPaperCut MF and NG contain an improper access control flaw in the web management interface where unauthenticated remote requests to administrative fu…KEVEPSS 4.5%analysed9.8CVE-2025-31161CrushFTP AWS4-HMAC auth bypass enables crushadmin takeoverCrushFTP 10 before 10.8.4 and 11 before 11.3.1 contains an authentication bypass in the AWS4-HMAC (S3-compatible) authorization method of its HTTP co…KEVEPSS 100%analysed7.2CVE-2024-37085VMware ESXi AD group recreation authentication bypassVMware ESXi contains an authentication bypass where an actor with sufficient Active Directory permissions can regain full access to an ESXi host join…KEVEPSS 27%analysed

Source: NIST National Vulnerability Database (record CVE-2026-0869), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.