CVE-2026-0689— XIQ‑SE NAC Admin Credential Exposure via HTTP Response
Quick assessment
Affected
Extreme Networks ExtremeCloud IQ - Site Engine
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.
ExtremeCloud IQ Site Engine是美国Extreme公司的一套集中式网络管理与控制平台。 ExtremeCloud IQ Site Engine 26.2.10之前版本存在安全漏洞，该漏洞源于NAC管理界面返回底层凭据值，可能导致授权管理员恢复存储的敏感信息。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2026-0689
Vulnerability Information
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Vulnerability Title
XIQ‑SE NAC Admin Credential Exposure via HTTP Response
Source: CVE Program / CVE List V5
Vulnerability Description
In ExtremeCloud IQ – Site Engine (XIQ‑SE) before 26.2.10, a vulnerability in the NAC administration interface allows an authenticated NAC administrator to retrieve masked sensitive parameters from HTTP responses. Although credentials appear redacted in the user interface, the application returns the underlying credential values in the HTTP response, enabling an authorized administrator to recover stored secrets that may exceed their intended access.
We would like to thank the Lockheed Martin Red Team for responsibly reporting this issue and working with us through coordinated disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的凭证保护机制
Source: CVE Program / CVE List V5
Vulnerability Title
ExtremeCloud IQ Site Engine 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ExtremeCloud IQ Site Engine是美国Extreme公司的一套集中式网络管理与控制平台。 ExtremeCloud IQ Site Engine 26.2.10之前版本存在安全漏洞，该漏洞源于NAC管理界面返回底层凭据值，可能导致授权管理员恢复存储的敏感信息。
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 | ExtremeCloud IQ - Site Engine | 25.5.12.6 ~ <=25.12.11 | - |
|
II. Public POCs for CVE-2026-0689
| # | POC Description | Source Link | Shenlong Link |
|---|
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V. Comments for CVE-2026-0689
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