CVE-2026-0689
XIQ‑SE NAC Admin Credential Exposure via HTTP Response
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.
INFO
Published Date :
March 2, 2026, 4:16 p.m.
Last Modified :
June 17, 2026, 10:11 a.m.
Remotely Exploit :
Yes !
Source :
1c053176-eef3-4d6a-ae0b-24728c86587b
Affected Products
The following products are affected by CVE-2026-0689
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | MEDIUM | 1c053176-eef3-4d6a-ae0b-24728c86587b | ||||
| CVSS 4.0 | MEDIUM | 1c053176-eef3-4d6a-ae0b-24728c86587b |
Solution
- Update ExtremeCloud IQ – Site Engine to version 26.2.10.
- Apply vendor patches promptly.
- Review access controls for administrators.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-0689.
| URL | Resource |
|---|---|
| https://extreme-networks.my.site.com/ExtrArticleDetail?an=000134325 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-0689 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-0689
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-0689 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-0689 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 1c053176-eef3-4d6a-ae0b-24728c86587b
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Extreme Networks', 'product': 'ExtremeCloud IQ - Site Engine', 'versions': [{'status': 'affected', 'changes': [{'at': '26.02.11', 'status': 'unaffected'}], 'version': '25.5.12.6', 'versionType': 'custom', 'lessThanOrEqual': '<=25.12.11'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-0689', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-03-02T19:17:27.896047Z'} -
Initial Analysis by [email protected]
Jun. 05, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Added CPE Configuration OR *cpe:2.3:a:extremenetworks:extremecloud_iq_site_engine:*:*:*:*:*:*:*:* versions up to (excluding) 26.2.10 Added Reference Type ExtremeNetworks: https://extreme-networks.my.site.com/ExtrArticleDetail?an=000134325 Types: Vendor Advisory -
CVE Modified by 1c053176-eef3-4d6a-ae0b-24728c86587b
Mar. 02, 2026
Action Type Old Value New Value Changed 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. 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. -
New CVE Received by 1c053176-eef3-4d6a-ae0b-24728c86587b
Mar. 02, 2026
Action Type Old Value New Value Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-522 Added Reference https://extreme-networks.my.site.com/ExtrArticleDetail?an=000134325