[Important] cPanel Security Advisory: Upcoming cPanel & WHM Security Update on September 29, 2026
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 28, 2026 - 21:50 EDT
Scheduled - a cPanel & WHM security patch is expected to be released on Tuesday, September 29, 2026

In preparation it is recommended VPS and Dedicated Servers pre-run dnf/yum or apt updates depending on the OS version installed. Ensure all updates are applied and there are no conflicts with the OS software update.

All InterServer webhosting systems have pre-run package updates.

This release addresses multiple vulnerabilities across versions of cPanel & WHM, including fixes for vulnerabilities rated up to Critical severity.

Patch & Affected Versions

The patch will be distributed through the standard cPanel automatic update process and through the manual update process. We strongly recommend performing a manual update once the patch is made available.

Versions Impacted: 110 and after
Sep 28, 2026 21:50 - Sep 29, 2026 21:50 EDT

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Scheduled Maintenance

webhosting2020 hardware refresh and os upgrade Sep 29, 2026 09:00 - Oct 1, 2026 09:00 EDT

As part of ongoing service improvements and security updates, the above cpanel server will undergo an OS upgrade and hardware refresh.

The OS will be bumped from cloudlinux7 to cloudlinux 10 which offers os updates until May 31, 2035 and mariadb bumped to 10.11

A hardware refresh will offers CPU, RAM and disk speed improvements.

What to expect:
- Services hosted on above will be temporarily unavailable for a few minutes
- Cloudlinux will continue to offer older php versions under php selector
- No ip changes will occur.
- The hostname will update to webhosting3016

cPanel will end of life cloudlinux7 in 2027 and this is part of a replacement of any remaining cloudlinux7 system migrations.
Posted on Sep 28, 2026 - 16:13 EDT

Sep 29, 2026

No incidents reported today.

Sep 28, 2026

Unresolved incident: [Important] cPanel Security Advisory: Upcoming cPanel & WHM Security Update on September 29, 2026.

Sep 27, 2026

No incidents reported.

Sep 26, 2026

No incidents reported.

Sep 25, 2026

kvm25.dfw1 hardware replacement
Completed - The scheduled maintenance has been completed.
Sep 25, 01:50 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 24, 22:50 EDT
Scheduled - The kvm25.dfw1 kvm system will have a hardware replacement due to instability and a system lock up today.
Sep 24, 22:47 EDT

Sep 24, 2026

kvm309 ram module replacement and upgrade
Completed - The scheduled maintenance has been completed.
Sep 24, 19:08 EDT
Verifying - The replacement is completed and vm's are online. The system is being monitored.
Sep 24, 17:51 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 24, 17:08 EDT
Scheduled - The kvm309 system will have a ram module replacement and upgrade, swapping a module and brining additional ram to the system.
Sep 24, 17:07 EDT
webhosting2013 hardware refresh and os upgrade
Completed - The scheduled maintenance has been completed.
Sep 24, 14:30 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 14:30 EDT
Scheduled - As part of ongoing service improvements and security updates, the above cpanel server will undergo an OS upgrade and hardware refresh.

The OS will be bumped from cloudlinux8 to cloudlinux 10 which offers os updates until May 31, 2035 and mariadb bumped to 10.11

A hardware refresh will offers CPU, RAM and disk speed improvements.

What to expect:
- Services hosted on above will be temporarily unavailable for a few minutes
- Cloudlinux will continue to offer older php versions under php selector
- No ip changes will occur.
- The hostname will update to webhosting3015
Sep 23, 14:26 EDT

Sep 23, 2026

KVM577 reboot and maintenance
Completed - The scheduled maintenance has been completed.
Sep 23, 16:00 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 15:00 EDT
Scheduled - As part of ongoing service improvements and security updates, we will be rebooting the above nodes.

This is strictly proactive maintenance to apply necessary fixes and keep the system secure.

What to expect:
- Services hosted on above will be temporarily unavailable during the restart.
- The downtime will be brief, and everything will come back online automatically once the reboot is complete.
Sep 23, 14:06 EDT
storage-kvm300 maintenance and reboot
Completed - The scheduled maintenance has been completed.
Sep 23, 15:01 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 14:00 EDT
Scheduled - As part of ongoing service improvements and security updates, we will be rebooting the above nodes.

This is strictly proactive maintenance to apply necessary fixes and keep the system secure.

What to expect:
- Services hosted on above will be temporarily unavailable during the restart.
- The downtime will be brief, and everything will come back online automatically once the reboot is complete.
Sep 23, 13:14 EDT
Directadmin VDA1500 OS upgrade
Completed - The scheduled maintenance has been completed.
Sep 23, 13:05 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 10:05 EDT
Scheduled - As part of ongoing service improvements and security updates, the above directadmin server will undergo an OS upgrade.

This is strictly proactive maintenance for security updates and ensure long term support for the operating system.

What to expect:
- Services hosted on above will be temporarily unavailable during the restart.
- PHP, exim and dovecot will rebuild after the restart.
- There will be no major version changes to PHP, MySQL or Directadmin.
Sep 23, 10:00 EDT

Sep 22, 2026

storage-kvm400 maintenance and reboot
Completed - The scheduled maintenance has been completed.
Sep 22, 13:30 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 22, 12:30 EDT
Scheduled - As part of ongoing service improvements and security updates, we will be rebooting the above nodes.

This is strictly proactive maintenance to apply necessary fixes and keep the system secure.

What to expect:
- Services hosted on above will be temporarily unavailable during the restart.
- The downtime will be brief, and everything will come back online automatically once the reboot is complete.
Sep 22, 11:07 EDT

Sep 21, 2026

No incidents reported.

Sep 20, 2026

KVM567 node outage
Resolved - This incident has been resolved.
Sep 20, 01:53 EDT
Investigating - We are currently investigating an outage on server kvm567 that is reporting a AUX/Main EFUSE error.
Sep 19, 22:30 EDT

Sep 19, 2026

openvz87 (virtuozzo7) harddrive failure
Resolved - This incident has been resolved.
Sep 19, 19:20 EDT
Monitoring - The restore is completed and we are monitoring the system.
Sep 18, 18:13 EDT
Identified - The openvz87 system has had a double harddrive failure. The latest full system backup is being restored to new hardware with approximatly 1 - 2 hours left.

Please be aware virtuozzo7 reaches end of life Dec 31st https://www.interserver.net/tips/kb/virtuozzo7-upcoming-end-of-life/
Sep 18, 16:42 EDT

Sep 18, 2026

Sep 17, 2026

VDA3600 OS Upgrade
Completed - The scheduled maintenance has been completed.
Sep 17, 13:30 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 17, 10:30 EDT
Scheduled - As part of ongoing service improvements and security updates, the above directadmin server will undergo an OS upgrade.

This is strictly proactive maintenance for security updates and ensure long term support for the operating system.

What to expect:
- Services hosted on above will be temporarily unavailable during the restart.
- PHP, exim and dovecot will rebuild after the restart.
- There will be no major version changes to PHP, MySQL or Directadmin.
Sep 17, 10:28 EDT

Sep 16, 2026

storage-kvm1200.is.cc maintenance and reboot
Completed - The scheduled maintenance has been completed.
Sep 16, 14:45 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 16, 13:45 EDT
Scheduled - As part of ongoing service improvements and security updates, we will be rebooting the above nodes.

This is strictly proactive maintenance to apply necessary fixes and keep the system secure.

What to expect:
- Services hosted on above will be temporarily unavailable during the restart.
- The downtime will be brief, and everything will come back online automatically once the reboot is complete.
Sep 16, 12:34 EDT

Sep 15, 2026

Hyperv196 network maitenance
Completed - The scheduled maintenance has been completed.
Sep 15, 22:30 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 15, 18:30 EDT
Scheduled - We are performing scheduled maintenance for Hyperv196 network

During this maintenance, downtime is expected to be up to 2-3 hours.
Sep 15, 14:21 EDT
Critial Litespeed 6.3.7. update
Completed - The scheduled maintenance has been completed.
Sep 15, 18:30 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 14, 18:30 EDT
Scheduled - A critical privilege-escalation vulnerability has been identified in LiteSpeed Web Server Enterprise. On shared-hosting servers, a malicious low-privilege website user could potentially gain root-level access to the server.

This issue can bypass expected account isolation controls, including CageFS, allowing a malicious website user to potentially escape its restricted environment and gain root-level access to the server.

Impact
Currently affected versions are LiteSpeed Web Server Enterprise versions prior to v6.3.7.

All cpanel and directadmin shared hosting servers have been upgraded to 6.3.7.

Users who have litespeed enterprise installed: Please run the following command to perform an update to LiteSpeed v6.3.7:

/usr/local/lsws/admin/misc/lsup.sh -f -v 6.3.7
Sep 14, 18:26 EDT
storage-kvm1100 maintenance and reboot
Completed - The scheduled maintenance has been completed.
Sep 15, 14:00 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 15, 13:00 EDT
Scheduled - As part of ongoing service improvements and security updates, we will be rebooting the above nodes.

This is strictly proactive maintenance to apply necessary fixes and keep the system secure.

What to expect:
- Services hosted on above will be temporarily unavailable during the restart.
- The downtime will be brief, and everything will come back online automatically once the reboot is complete.
Sep 15, 11:51 EDT
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