Authentication Bypass in Extreme Networks' Fabric Engine (CVE-2025-11192)
Summary
Authentication bypass in Extreme Networks' Fabric Engine (CVE-2025-11192). Confidential information can be exposed externally.
Original description
The description as published by the source.
A vulnerability in Extreme Networks’ Fabric Engine (VOSS) before 9.3 was discovered. When SD-WAN AutoSense is enabled on a port, it may automatically configure fabric connectivity without validating ISIS authentication settings. The SD-WAN AutoSense implementation may be exploited by malicious actors by allowing unauthorized access to network fabric and configuration data.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-11192 has been found in Extreme Networks' Fabric Engine.
Confidential information can be exposed externally. CVSS score: 8.6/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Extreme Networks' Fabric Engine CVE-2025-11192" on the vendor's site.
CVE-2025-11192 (Extreme Networks' Fabric Engine) — CWE-287 / CVSS v3 8.6
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Authentication bypass (CWE-287) exists in Extreme Networks' Fabric Engine.
Check the vendor advisory for the affected versions of Extreme Networks' Fabric Engine.
Severity: High (CVSS 8.6/10). Confidential information can be exposed externally.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで Extreme Networks' Fabric Engine を使っているサービスとバージョンを洗い出す。
-
2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。