CVE-2026-85421
A critical security vulnerability has been identified in Brocade ASCG versions before 3.5.0. The HTTPS servic…
A critical security vulnerability has been identified in Brocade ASCG versions before 3.5.0. The HTTPS service fails to properly enforce authentication or access control checks on incoming requests. An unauthenticated attacker with network access can issue control commands, alter cluster states, and modify system configurations, leading to a complete compromise of the streaming service control plane.
- Vendor
- broadcom
- Product
- brocade active support connectivity gateway
- CVSS 3.1
- 8.8 (high), scored by NVD (primary)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 4.0
- 8.7 (high), scored by sirt@brocade.comCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:X/V:X/RE:X/U:X
- CWE
- CWE-306
- Published
- 2026-10-08
- NVD modified
- 2026-10-14
- NVD status
- Analyzed
Not in the CISA KEV catalogue at the last update.
EPSS
0.22% chance of exploitation in the next 30 days (percentile 11th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- support.broadcom.com (Vendor Advisory)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.