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Extreme Network Fabric Engine < 9.3 Authentication Bypass (SA-2025-115)

high Nessus Plugin ID 350292

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Synopsis

The remote host has a program that is affected by an authentication bypass vulnerability.

Description

The version of Extreme Networks Fabric Engine installed on the remote host is missing a security update. It is, therefore, affected by an authentication bypass vulnerability.

 - 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.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade Fabric Engine to 9.3 or later

See Also

https://extreme-networks.my.site.com/ExtrArticleDetail?an=000130291

http://www.nessus.org/u?0532e3e6

Plugin Details

Severity: High

ID: 350292

File Name: extreme_networks_exos_SA_2025_115.nasl

Version: 1.2

Type: Remote

Family: Misc.

Published: 9/25/2026

Updated: 9/28/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.3

Percentile: 51.13

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2025-11192

CVSS v3

Risk Factor: High

Base Score: 8.6

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.4

Threat Score: 5.4

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:N

Vulnerability Information

CPE: cpe:/o:extremenetworks:fabric_engine

Required KB Items: installed_sw/Extreme Networks Fabric Engine

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2025

Vulnerability Publication Date: 9/30/2025

Reference Information

CVE: CVE-2025-11192