Litespeed Webserver Updates
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 03, 2026 - 23:05 EST
Scheduled - Litespeed webhosting on shared systems have been updated to
LiteSpeed Web Server (Enterprise) v6.3.7 build 8

Users with litespeed or openlitespeed please update to the following builds
LiteSpeed Web Server (Enterprise) v6.3.7 build 8 or v6.4.0 RC2 build 6
Or
OpenLiteSpeed v1.9.4
Nov 3, 2026 23:05 - Nov 5, 2026 23:05 EST
Scheduled Infrastructure Maintenance | TEB4
Update - The servers below are scheduled for maintenance on the dates shown, between 10:00 AM and 10:00 PM Eastern Time. Each server is offline for a maximum of up to 3 hours within that window. IP addresses do not change.

Wednesday, November 4
qs296.is.cc, qs294.is.cc, openvz132.is.cc, qs304.is.cc, qs144.is.cc, qs474.is.cc, qs307.is.cc, qs306.is.cc, qs305.is.cc, kvm335.is.cc, qs425.is.cc, kvm338.is.cc, storage-intvps1.is.cc, qs385.is.cc, qs297.is.cc, qs392.is.cc, kvm516.is.cc, kvm357.is.cc, kvm333.is.cc, qs229.is.cc, qs149.is.cc, qs136.is.cc, qs249.is.cc, openvz23.is.cc, qs480.is.cc, qs383.is.cc, qs187.is.cc, qs188.is.cc, qs190.is.cc, qs446.is.cc

Thursday, November 5
qs287.is.cc, storage-kvm2000.is.cc, openvz46.is.cc, openvz129.is.cc, storage-kvm500.is.cc, openvz133.is.cc, qs468.is.cc, kvm513.is.cc, kvm300.is.cc, storage-kvm1400.is.cc, kvm514.is.cc, qs159.is.cc, qs196.is.cc, qs237.is.cc, qs214.is.cc, kvm79.is.cc, qs469.is.cc, qs271.is.cc, qs470.is.cc, qs182.is.cc, qs208.is.cc, qs197.is.cc, kvm307.is.cc, qs282.is.cc, storage-kvm2200.is.cc, openvz61.is.cc, kvm327.is.cc, kvm347.is.cc, openvz130.is.cc, storage-kvm1600.is.cc
Nov 03, 2026 - 18:50 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 02, 2026 - 08:00 EST
Update - The servers below are scheduled for maintenance on the dates shown, between 10:00 AM and 10:00 PM Eastern Time. Each server is offline for a maximum of up to 3 hours within that window. IP addresses do not change.

Monday, November 2
storage-kvm2600.is.cc, storage-kvm2700.is.cc, storage-kvm2800.is.cc, storage-kvm3300.is.cc, openvz32.is.cc, openvz52.is.cc, openvz118.is.cc, hyperv71.is.cc, hyperv72.is.cc, hyperv118.is.cc, hyperv122.is.cc, hyperv126.is.cc, hyperv127.is.cc, hyperv129.is.cc, hyperv133.is.cc, hyperv134.is.cc, hyperv148.is.cc

Tuesday, November 3
kvm321.is.cc, kvm322.is.cc, kvm332.is.cc, openvz83.is.cc, openvz91.is.cc, openvz102.is.cc, openvz116.is.cc, openvz126.is.cc, openvz131.is.cc, storage-kvm1800.is.cc, storage-kvm4700.is.cc, storage-kvm4800.is.cc, hyperv98.is.cc, hyperv109.is.cc, hyperv111.is.cc, hyperv113.is.cc, hyperv114.is.cc, hyperv123.is.cc, hyperv154.is.cc, HVplesk9400.is.cc

* This include webhosting systems
- webhosting2043
- vda3300
- kvm2800
Nov 2, 2026 08:00-09:00 EST
Scheduled - We will be performing scheduled maintenance at our TEB4 data center as part of ongoing facility and network infrastructure upgrades.

Maintenance will be carried out in phases to minimize service disruptions. Affected servers will experience a temporary interruption of service, with expected downtime of up to 3 hours per server.

As maintenance windows are finalized, additional updates will be posted identifying the affected servers and their scheduled dates and times.

We will continue to provide updates throughout the maintenance process until all work has been completed.
Nov 2, 2026 08:00-09:00 EST

About This Site

Interserver Status Page

my Operational
Management Portal Operational
Datacenters Operational
TEB2 Operational
TEB4 Operational
TEB5 Operational
TEB6 Operational
Equinix NY4 Operational
Equinix LAX1 Operational
LAX2 Operational
TEB7 Operational
Network Operational
Network Operational
Services Under Maintenance
Webhosting Under Maintenance
Storage Under Maintenance
VPS Under Maintenance
Mailbaby Operational
Scrub Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Nov 4, 2026

No incidents reported today.

Nov 3, 2026

Scheduled maintenance for 6 Hyperv servers
Postmortem - Read details
Nov 3, 18:23 EST
Completed - The scheduled maintenance has been completed.
Nov 3, 18:00 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 3, 16:22 EST
Scheduled - We are performing scheduled maintenance for the following servers listed below.

hyperv113.is.cc,
hyperv114.is.cc,
hyperv109.is.cc,
hyperv123.is.cc,
hyperv98.is.cc,
HVplesk9400.is.cc,
hyperv154.is.cc,
hyperv111.is.cc


During this maintenance, downtime is expected to be up to 2-3 hours per server.
Nov 3, 16:00 EST
Upcoming PHP Security update
Resolved - This incident has been resolved.
Nov 3, 09:53 EST
Update - A further security vulnerability was found in PHP and has been assigned CVE-2026-115560. More info at https://www.php.net/archive/2026.php#2026-10-23-1

All webhosting servers have the recommended mitigation enabled.
Oct 28, 19:12 EDT
Update - ea-php (cPanel EasyApache 4) builds with the PHP.net version numbers are now in the stable repositories:
- ea-php82: 8.2.35-1, for CloudLinux OS 7, 8, 9, 10 and CloudLinux OS for Ubuntu 22.04
- ea-php83: 8.3.36-1, for CloudLinux OS 7, 8, 9, 10 and CloudLinux OS for Ubuntu 22.04
- ea-php84: 8.4.27-1, for CloudLinux OS 8, 9, 10 and CloudLinux OS for Ubuntu 22.04
- ea-php85: 8.5.12-1, for CloudLinux OS 8, 9, 10 and CloudLinux OS for Ubuntu 22.04

Previous versions were backported. The new releases show the updated versions.
Oct 24, 08:13 EDT
Update - Update: Security Patches Deployed for PHP Vulnerabilities (CVE-2026-109618 / CVE-2026-109619)

We have deployed security updates across our cPanel, DirectAdmin, and Webuzo hosting environments to address the recent PHP vulnerabilities.

Shared Hosting Proactive Mitigations
Before the official PHP updates were even released, we proactively forced session.upload_progress.enabled=0 across all shared hosting servers as a partial mitigation. We also deployed custom Web Application Firewall (WAF) rules to inspect and protect multi-part uploads against this exploit. These servers are now receiving the full PHP patches as outlined below.

cPanel Servers
For cPanel systems, the fixes are applied as backports. This means your PHP version number will not change to the latest upstream release (for example, ea-php84 remains at 8.4.26 instead of showing 8.4.27).

To confirm the fix is active on a cPanel server, you need to check the package changelog for the CVE IDs rather than looking at the PHP version number. You can verify this via SSH using the following command (replace ea-php84 with your installed version):rpm -q ea-php84-php-cli --changelog | grep -E 'CVE-2026-(109618|109619)'

DirectAdmin Servers
On DirectAdmin, modern PHP branches have been updated to the fully patched upstream releases: 8.5.12, 8.4.27, 8.3.36, and 8.2.35. For older, legacy PHP versions (5.6 through 8.1), the security fixes have been successfully applied as custom patches through CustomBuild.

Webuzo Servers
For Webuzo environments, all PHP packages spanning versions 5.6 through 8.5 are available for updates by logging into webuzo

Manual Workaround for Unmanaged Servers
If you are running an unmanaged server and cannot apply the PHP updates immediately, you can temporarily mitigate the vulnerability by disabling session upload progress. To do this, add or update the following line in your active php.ini file:session.upload_progress.enabled=0 while updates applied.
Oct 22, 07:54 EDT
Update - directadmin legacy and cloudlinux are patched and going through final checks.
Oct 21, 20:14 EDT
Update - directadmin storage systems (with out cloudlinux) have been patched
Oct 21, 20:10 EDT
Update - All cpanel systems ea-php* packages have been updated. However some include back ports such as ea-php84 is 8.4.26, not 8.4.27.
Oct 21, 19:32 EDT
Update - Cpanel has released 8.5.12, 8.4.27, 8.3.36, 8.2.35, along with the backported versions 8.1.34,8.0.30, and 7.4.33 and these are now being applied.
Oct 21, 11:41 EDT
Update - Directadmin custombuild is available: This moves PHP 8.5, 8.4, 8.3, 8.2 to latest version, and adds patches for PHP 8.1, PHP 8.0 and PHP 7.4

Please be aware PHP lower than 7.4 will be removed, if installed through custombuild at this time. PHP selector from cloudlinux will patch via alt-php.
Oct 21, 10:18 EDT
Update - Imunify360 has release ModSecurity ruleset 8.83 which targets the PHP session upload progress handling of multipart requests, plus a telemetry rule to track related activity. All webhosting servers have been verified to be running this version.

Storage directadmin does not offer imunify360. These run modsecurity with owasp ruleset.
Oct 21, 08:27 EDT
Update - On shared hosting systems with in the last few hours
session.upload_progress.enabled = Off
Has been set off with in php.ini as all as in litespeed under the main config file using php_value. This closes a possible part of of the exploit, but officially this mitigation does not come directly from PHP devs.
Oct 21, 07:34 EDT
Update - The official PHP project will likely not provide security patches for versions older than PHP 8.2.

Servers running cPanel or DirectAdmin with CloudLinux utilize HardenedPHP and will receive these patches over time. Standard DirectAdmin servers without CloudLinux do not currently support HardenedPHP, though we are actively consulting with the CloudLinux team to determine if standalone Imunify360 servers can utilize it.

Additionally, if the exploit is within PHP-FPM, servers running LiteSpeed are likely unaffected.

Depending on the severity of the issue, sites on non-CloudLinux systems without HardenedPHP may be required to update to PHP 8.2 or higher, or migrate to a CloudLinux system (which will require an IP address change).
Oct 20, 18:47 EDT
Investigating - An upcoming PHP security update is planned to be released tomorrow - https://www.php.net/archive/2026.php#2026-10-20-1

No further information is available at this time.
Oct 20, 17:27 EDT
KVM25 DFW
Resolved - This incident has been resolved.
Nov 3, 09:53 EST
Monitoring - A fix has been implemented and we are monitoring the results.
Oct 31, 08:42 EDT
Investigating - We are investigating an outage on kvm25 DFW
Oct 31, 06:45 EDT

Nov 2, 2026

Scheduled maintenance for 10 Hyperv servers
Completed - The scheduled maintenance has been completed.
Nov 2, 20:30 EST
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Nov 2, 17:30 EST
Scheduled - We are performing scheduled maintenance for the following servers listed below.

hyperv148.is.cc
hyperv134.is.cc
hyperv133.is.cc
hyperv129.is.cc
hyperv126.is.cc
hyperv71.is.cc
hyperv72.is.cc
hyperv127.is.cc
hyperv122.is.cc
hyperv118.is.cc


During this maintenance, downtime is expected to be up to 2-3 hours per server.
Nov 2, 10:49 EST

Nov 1, 2026

Scheduled Maintenance: Rolling Kernel Updates for Select KVM Hosts
Completed - The scheduled maintenance has been completed.
Nov 1, 08:46 EST
Update - kvm391/webhosting2033 is scheduled for a kernel update.
Oct 30, 13:59 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 29, 09:46 EDT
Update - The kvm536 system is scheduled for a reboot.
Oct 29, 09:46 EDT
Scheduled - Maintenance Window: (72-hour duration)

Overview:
Over the next 72 hours, our engineering team will perform rolling kernel updates on a specific group of KVM host servers. This maintenance is required to patch the current system base and maintain overall infrastructure security.

Expected Impact:
To minimize disruption, we are updating and rebooting these servers one at a time. If your applications or virtual machines operate on an affected host, you will experience a brief interruption in connectivity when that specific machine restarts to apply the new kernel.

Because this is a rolling update across a 72-hour window, the entire cluster will not go offline at once. We expect downtime for any individual host to be limited to the time it takes to complete a standard reboot.
Oct 29, 09:45 EDT

Oct 31, 2026

Oct 30, 2026

kvm558 outage
Resolved - This incident has been resolved.
Oct 30, 13:59 EDT
Investigating - We are investigating an outage on the kvm558 system due to a dos attack.
Oct 30, 11:28 EDT

Oct 29, 2026

Oct 28, 2026

Hyperv162 network issue
Resolved - Server has been moved , this issue has been resolved
Oct 28, 07:45 EDT
Identified - We have identified the issue with hyperv162 and we are moving the server to a new rack

During this maintenance, downtime is expected to be up to 1-2 hours .
Oct 27, 18:43 EDT
Investigating - We are currently experiencing network-related issues affecting hyperv162. Our team is actively investigating the issue and working to restore normal network connectivity as quickly as possible.
We apologize for the inconvenience and appreciate your patience. We will provide further updates as more information becomes available.
Oct 27, 09:27 EDT
storage-kvm6500 drive failure
Resolved - This incident has been resolved.
Oct 28, 01:37 EDT
Investigating - We are investigating a kernel crash and drive failure on the server. We are attempting recovery and working on restoring services.
Oct 27, 23:25 EDT

Oct 27, 2026

Oct 26, 2026

Scheduled maintenance for Hyperv146 - Plesk7900
Resolved - This incident has been resolved
Oct 26, 18:04 EDT
Investigating - We are performing scheduled maintenance for the following servers listed below.

hyperv146.is.cc
Plesk7900.is.cc


During this maintenance, downtime is expected to be up to 2-3 hours per server.
Oct 26, 16:51 EDT

Oct 25, 2026

No incidents reported.

Oct 24, 2026

Scheduled Maintenance: Rolling Kernel Updates for Select KVM Hosts
Completed - The scheduled maintenance has been completed.
Oct 24, 11:00 EDT
Update - The following systems are scheduled next

* kvm18.dfw1.is.cc
* kvm18.lax1.is.cc
* kvm19.dfw1.is.cc
* kvm19.lax1.is.cc
* kvm20.dfw1.is.cc
* kvm20.lax1.is.cc
Oct 23, 08:10 EDT
Update - kvm578 has been added to the reboot schedule for today.
Oct 22, 15:06 EDT
Update - The following systems will be completed tomorrow

* kvm539.is.cc - vda
* kvm537.is.cc - vda
* kvm18.dfw1.is.cc
* kvm18.lax1.is.cc
* kvm19.dfw1.is.cc
* kvm19.lax1.is.cc
* kvm20.dfw1.is.cc
* kvm20.lax1.is.cc
Oct 22, 13:09 EDT
Update - The next batch of reboots will be


* kvm14.dfw1.is.cc
* kvm15.dfw1.is.cc
* kvm16.dfw1.is.cc
* kvm16.lax1.is.cc
* kvm17.dfw1.is.cc
* kvm17.lax1.is.cc
Oct 22, 12:21 EDT
Update - The last batch is completed. The next batch will be

* kvm531.is.cc
* kvm532.is.cc
* kvm533.is.cc
* kvm534.is.cc
* kvm348.is.cc
* kvm23.dfw1.is.cc
Oct 22, 09:43 EDT
Update - The last batch is completed. The next batch will be

* kvm546.is.cc
* kvm547.is.cc
* kvm548.is.cc
* kvm549.is.cc
* kvm550.is.cc
* kvm551.is.cc
Oct 22, 08:39 EDT
Update - The following nodes are in progress

* kvm540.is.cc
* kvm541.is.cc
* kvm542.is.cc
* kvm543.is.cc
* kvm544.is.cc
* kvm545.is.cc
Oct 22, 08:05 EDT
Update - The following have been completed

kvm560.is.cc
kvm561.is.cc
kvm562.is.cc
kvm563.is.cc
kvm564.is.cc
kvm565.is.cc
kvm566.is.cc
Oct 21, 14:57 EDT
Update - The following have been completed
kvm568.is.cc
kvm569.is.cc
kvm570.is.cc
kvm571.is.cc
kvm558.is.cc
kvm559.is.cc
Oct 21, 13:51 EDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 21, 11:00 EDT
Scheduled - Maintenance Window: (72-hour duration)

Overview:
Over the next 72 hours, our engineering team will perform rolling kernel updates on a specific group of KVM host servers. This maintenance is required to patch the current system base and maintain overall infrastructure security.

Expected Impact:
To minimize disruption, we are updating and rebooting these servers one at a time. If your applications or virtual machines operate on an affected host, you will experience a brief interruption in connectivity when that specific machine restarts to apply the new kernel.

Because this is a rolling update across a 72-hour window, the entire cluster will not go offline at once. We expect downtime for any individual host to be limited to the time it takes to complete a standard reboot.

Affected Systems:

kvm568.is.cc
kvm569.is.cc
kvm570.is.cc
kvm571.is.cc
kvm558.is.cc
kvm559.is.cc
kvm560.is.cc
kvm561.is.cc
kvm562.is.cc
kvm563.is.cc
kvm564.is.cc
kvm565.is.cc
kvm566.is.cc
kvm539.is.cc
kvm540.is.cc
kvm541.is.cc
kvm542.is.cc
kvm543.is.cc
kvm544.is.cc
kvm545.is.cc
kvm546.is.cc
kvm547.is.cc
kvm548.is.cc
kvm549.is.cc
kvm550.is.cc
kvm551.is.cc
kvm531.is.cc
kvm532.is.cc
kvm533.is.cc
kvm534.is.cc
kvm537.is.cc
kvm348.is.cc
kvm23.dfw1.is.cc
kvm14.dfw1.is.cc
kvm15.dfw1.is.cc
kvm16.dfw1.is.cc
kvm16.lax1.is.cc
kvm17.dfw1.is.cc
kvm17.lax1.is.cc
kvm18.dfw1.is.cc
kvm18.lax1.is.cc
kvm19.dfw1.is.cc
kvm19.lax1.is.cc
kvm20.dfw1.is.cc
kvm20.lax1.is.cc
Oct 21, 09:38 EDT

Oct 23, 2026

Oct 22, 2026

kvm490 maintenance
Resolved - This incident has been resolved.
Oct 22, 15:06 EDT
Monitoring - A fix has been implemented and we are monitoring the results.
Oct 20, 16:01 EDT
Investigating - We will be applying firmware updates on kvm490 system to address stability issues with in ILO monitoring causing unexpected reboots. The maintenance may take up to 1 hour to complete.
Oct 20, 11:28 EDT

Oct 21, 2026

My Portal
Resolved - This incident has been resolved.
Oct 21, 11:08 EDT
Investigating - The customer facing my portal will be temporarily offline as PHP updates are applied. Email will be available under support@interserver.net.
Oct 21, 09:51 EDT
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