CVE-2026-0689: In ExtremeCloud IQ – Site Engine (XIQ‑SE) before 26.2.10, a vulnerability in the NAC administration interface

Q: How do I fix CVE-2026-0689?

extremecloud iq site engine: upgrade to 26.2.10. Exact commands for each OS are on this page.

Q: Is CVE-2026-0689 being exploited?

CVE-2026-0689 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-0689 affect?

CVE-2026-0689 affects extremecloud iq site engine. Severity is medium (CVSS 4.9). 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

Q: How urgent is CVE-2026-0689?

Priority 23/100. No elevated risk signals yet.

Routine

MEDIUM 4.9UPGRADE

CVE-2026-0689 is a medium-severity flaw (CVSS 4.9) affecting extremecloud iq site engine. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 acce

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.9 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-522
Published	2026-03-02
Last modified	2026-06-17

Publisher (CNA): ExtremeNetworks · Vendor: extremenetworks

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-02 16:16 UTCPublished CVE record published
2026-06-17 10:11 UTCUpdated Record last modified

extremenetworks extremecloud iq site engine UPGRADE

Affected: < 26.2.10

Fixed in: 26.2.10

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy extremecloud-iq-site-engine || rpm -q extremecloud-iq-site-engine || extremecloud-iq-site-engine --version

2. UPGRADE to 26.2.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade extremecloud-iq-site-engine

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade extremecloud-iq-site-engine

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-0689?

extremecloud iq site engine: upgrade to 26.2.10. Exact commands for each OS are on this page.

Is CVE-2026-0689 being exploited?

CVE-2026-0689 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-0689 affect?

CVE-2026-0689 affects extremecloud iq site engine. Severity is medium (CVSS 4.9). 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

How urgent is CVE-2026-0689?

Priority 23/100. No elevated risk signals yet.

References

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