CVE-2026-0689Network attack vector

Credential disclosure via unmasked HTTP response values

Published Mar 2, 2026 · Updated Mar 2, 2026

Credential exposure in Extreme Networks ExtremeCloud IQ Site Engine before 26.2.10 allows remote authenticated users to retrieve stored NAC secrets. The NAC administration interface masks sensitive parameters in the user interface but places their underlying credential values in HTTP responses. NAC administrator privileges are required, and disclosure is limited to stored secrets returned through authorized administration requests.

CVSS severity4.9
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Credential exposure in Extreme Networks ExtremeCloud IQ Site Engine before 26.2.10 allows remote authenticated users to retrieve stored NAC secrets. The NAC administration interface masks sensitive parameters in the user interface but places their underlying credential values in HTTP responses. NAC administrator privileges are required, and disclosure is limited to stored secrets returned through authorized administration requests.

The record

CVE
CVE-2026-0689
Published
Mar 2, 2026
Updated
Mar 2, 2026
Vendor
Extreme Networks
Product
ExtremeCloud IQ Site Engine
Classifications
CWE-522, T1555
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=25.5.12.6 <=<=25.12.11 changes=[{"at":"26.02.11","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Extreme Networks · ExtremeCloud IQ Site Engineversion=25.5.12.6 <=<=25.12.11 changes=[{"at":"26.02.11","status":"unaffected"}]

Published CVSS scores

6.0ExtremeNetworksCVSS: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
4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-522Insufficiently Protected Credentials
T1555Credentials from Password Stores

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo