# CVE-2026-8169

## Summary

- **CVE ID:** CVE-2026-8169
- **Severity:** HIGH
- **CVSS Score:** 8.7 (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)
- **CWE:** CWE-338
- **Published:** Jul 20, 2026
- **Last Modified:** Jul 20, 2026

## Description

ExtremeXOS (EXOS) uses a challenge-response mechanism to authorize access to the privileged debug-mode function. The challenge value is generated using an insufficiently random source, which under certain conditions may allow an attacker to predict the expected response and activate debug-mode without authorization. Depending on device configuration and version, this may enable escalation to root-level access and persistent modification of the device software stack. Exploitation requires either a valid low-privilege account on the device (remote scenario) or physical serial console access (local scenario). This vulnerability is distinct from CVE-2017-14329, which addressed a different issue involving Python script privileges.

## Affected Products

- Extreme Networks — Switch Engine (EXOS) (0)
- Extreme Networks — Switch Engine (EXOS) (32.0.0)
- Extreme Networks — Switch Engine (EXOS) (33.0.0)
- Extreme Networks — Switch Engine (EXOS) (33.2.0)

## References

- [CNA](https://www.extremenetworks.com/support/policies/product-security)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.38%
- **EPSS Percentile:** 31.4

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._