Detections
Analytics

EXOS < 31.7.4 / 32.0.0 < 32.7.4.15 / 33.0.0 < 33.1.100, 33.7.0 < 33.7.1 Privilege Escalation (SA-2026-087)

high Nessus Plugin ID 350291

Synopsis

The remote host has a program that is affected by an privilege escalation vulnerability.

Description

The version of EXOS installed on the remote host is missing a security update. It is, therefore, affected by an privilege escalation vulnerability.

 - ExtremeXOS uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value can be predicted under certain conditions, allowing an attacker to predict the response and activate debug-mode, potentially allowing privilige escalation to root-level access and persistent modification of the device software stack.

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

Solution

Upgrade EXOS to 31.7.4, 32.7.4.15, 33.1.100, 33.7.1 or later

See Also

https://extreme-networks.my.site.com/ExtrArticleDetail?an=000137694

http://www.nessus.org/u?e6c410d0

Plugin Details

Severity: High

ID: 350291

File Name: extreme_networks_exos_SA_2026_087.nasl

Version: 1.1

Type: Remote

Family: Misc.

Published: 9/25/2026

Updated: 9/25/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.12

CVSS v2

Risk Factor: High

Base Score: 9

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

CVSS Score Source: CVE-2026-8169

CVSS v3

Risk Factor: High

Base Score: 8.8

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

CVSS v4

Risk Factor: High

Base Score: 8.7

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

Vulnerability Information

CPE: cpe:/o:extremenetworks:extremexos

Required KB Items: installed_sw/Extreme Networks ExtremeXOS

Patch Publication Date: 7/20/2026

Vulnerability Publication Date: 7/20/2026

Reference Information

CVE: CVE-2026-8169