PT-2026-61669 · Extreme Networks · Extremexos

CVE-2026-8169 · Published 2026-07-20 · Updated 2026-07-20

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

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

Name of the Vulnerable Software and Affected Versions ExtremeXOS (EXOS) (affected versions not specified)

Description ExtremeXOS (EXOS) employs a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using an insufficiently random source, which may allow an attacker to predict the expected response and activate debug-mode without authorization. This could lead to root-level access escalation and persistent modification of the device software stack. Exploitation requires either a valid low-privilege account on the device or physical serial console access.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-338

Related Identifiers

CVE-2026-8169

Affected Products

Extremexos

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-8169 · Security Note
• https://extremenetworks.com/support/policies/product-security · Vendor Advisory