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CVE-2026-8169— ExtremeXOS Debug-Mode Privilege Escalation via Weak PRNG

Quick assessment

Affected
Extreme Networks Switch Engine (EXOS)
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Extreme Networks Switch Engine是美国Extreme Networks公司的一款网络设备操作系统。 Extreme Networks Switch Engine 31.7.4之前版本、32.7.4.15之前版本、33.1.100之前版本和33.7.1之前版本存在加密问题漏洞，该漏洞源于使用不够随机的源生成挑战值，可能导致攻击者预测预期响应并未经授权激活调试模式，进而可能提升至root级别的访问权限并持久修改设备软件堆栈。

AI Predicted 7.8 Difficulty: Easy EPSS 0.38% · P30

Affected Version Matrix 4

VendorProduct Version RangeStatus
Extreme Networks Switch Engine (EXOS) < 31.7.4 affected
32.0.0< 32.7.4.15 affected
33.0.0< 33.1.100 affected
33.2.0< 33.7.1 affected
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I. Basic Information for CVE-2026-8169

Vulnerability Information
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Vulnerability Title
ExtremeXOS Debug-Mode Privilege Escalation via Weak PRNG
Source: CVE Program / CVE List V5
Vulnerability 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. Extreme would like to thank Hadrien Barral (Université Gustave Eiffel) and Georges-Axel Jaloyan (French Ministry of the Interior) for responsible disclosure of their findings.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
使用具有密码学弱点缺陷的PRNG
Source: CVE Program / CVE List V5
Vulnerability Title
Extreme Networks Switch Engine 加密问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Extreme Networks Switch Engine是美国Extreme Networks公司的一款网络设备操作系统。 Extreme Networks Switch Engine 31.7.4之前版本、32.7.4.15之前版本、33.1.100之前版本和33.7.1之前版本存在加密问题漏洞，该漏洞源于使用不够随机的源生成挑战值，可能导致攻击者预测预期响应并未经授权激活调试模式，进而可能提升至root级别的访问权限并持久修改设备软件堆栈。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Extreme Networks Switch Engine (EXOS) 0 ~ 31.7.4 -

II. Public POCs for CVE-2026-8169

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III. Intelligence Information for CVE-2026-8169

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Other References for CVE-2026-8169 (1)

IV. Related Vulnerabilities

Same product: Switch Engine (EXOS)
Same vendor: Extreme Networks
Same weakness: CWE-338

V. Comments for CVE-2026-8169

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