PHP Security Vulnerability – Patch Availability for XIQ-Site Engine and ExtremeControl

[RonaldW]

Hi Extreme Community,

Following the critical PHP security vulnerability as reported today by the UK NCSC, we would like to understand the potential impact on XIQ-Site Engine (XIQ-SE) and ExtremeControl.

Reference: https://www.ncsc.gov.uk/news/critical-security-issue-affecting-php

Could Extreme Networks clarify the following?

1. Are XIQ-Site Engine and ExtremeControl affected by this vulnerability?
2. If affected, is Extreme planning to release a security update or hotfix to address it?
3. Is it possible and officially supported to patch or upgrade PHP independently on XIQ-Site Engine and ExtremeControl, without waiting for a full product update?

We would particularly appreciate guidance on whether manually updating PHP could affect product functionality or support eligibility.

Thanks in advance for any clarification or recommendations.

Best regards,

Ronald

[abesio · Accepted solution]

I see an update: 

https://community.extremenetworks.com/t5/security-advisories-formerly/sa-2026-194-php2shell-rce-memo...

https://community.extremenetworks.com/t5/security-advisories-formerly/sa-2026-195-php2shell-rce-stal...

[RonaldW]

I see that ExtremeControl is still under investigation. For critical vulnerabilities like this, it would be helpful if Extreme could provide some recommended mitigation measures while the investigation is ongoing.

[Robert_Haynes · Accepted solution]

See https://extreme-networks.my.site.com/ExtrArticleDetail?an=000139710

[Robert_Haynes]

Providing ALL a quick response regarding the recent CVE-2026-109618 and CVE-2026-109619 (PHP2Shell) PHP vulnerabilities.

Extreme Networks’ Product Security Incident Response Team (PSIRT) is actively investigating these vulnerabilities. At this time, the investigation is still in progress, and we do not yet have a confirmed product-impact status to share.

We will provide a further update once PSIRT has concluded its investigation.

Thank you for your patience while the investigation is completed.

When the Security Advisories go live, this thread -- and I assume many others will be updated.

[JordanR]

Disappointing to not have any response from Extreme yet on such a high profile vulnerability? 

[WirelessHopper]

And what about captive portals hosted via Extreme?