CVE•Published 2025-07-17•Modified 2026-04-06•1 article on news•6 live references•NVD data
CVE-2025-6391Broadcom · Brocade_active_support_connectivity_gateway
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS percentile
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Weaknesses (CWE)
Description
Brocade 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 security implications, such as unauthorized access, session hijacking, and information disclosure.
Timeline
Published 2025-07-17
Modified 2026-04-06
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2025-6391Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Broadcom Brocade Active Support Connectivity Gateway"All exposed Broadcom Brocade Active Support Connectivity Gateway instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Brocade Active Support Connectivity Gateway"HTTP body or banner mentions "Brocade Active Support Connectivity Gateway" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2025-6391Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2025-6391Censys host search filtered to this CVE id.
grep.app
CVE-2025-6391Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2025-6391GitHub code search for direct mentions.
Google dork
"CVE-2025-6391" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.