Maintenance for security reasons

ZEP is temporarily offline

Your data is safe. Taking ZEP offline is purely a precaution.

ZEP has been offline since 11 am CEST. We have voluntarily taken the system offline. The reason is a security vulnerability in a widely used software component that many providers worldwide rely on. The vulnerability is not in ZEP itself, but one rule applies: security comes first.

What happened?
Latest updates

Status updates

We keep you posted here. The latest update is always at the top.

  1. 21 October 2026, 15:36 CEST Update

    The security update from the PHP Foundation is now available. We are installing and testing it before ZEP goes back online.

  2. 21 October 2026, 11:13 CEST Update

    The PHP Foundation expects to release a security update by 4 pm CEST. We will then build it into ZEP as quickly as possible. You can find more details at php.net.

  3. 21 October 2026, 11:00 CEST Offline

    We have voluntarily taken ZEP offline. The reason is a security vulnerability in a widely used software component. Your data is safe.

  4. 21 October 2026, 07:04 CEST In progress

    Our team is working at full speed on the security update. We cannot give an exact time yet.

What you need to know

An outage never comes at a good time. We are sorry.

If your team needs to book hours or send invoices today, an outage is the last thing you need. We are working at full speed to make ZEP available again as quickly as possible. Until then, please note down your times and book them once ZEP is back.

What happened?

A software component that many providers worldwide rely on has a security vulnerability. ZEP uses it too. The vulnerability is not in ZEP itself.

Why is ZEP offline?

We have voluntarily taken ZEP offline. It will only go back online once the security update is installed. Security comes first.

When will ZEP be back?

We deliberately won't name an exact time, because we only promise what we can keep. As soon as ZEP is back online, you will find out here.

To be absolutely clear

Your data is safe.

Taking ZEP offline is purely a precaution, no data has left our systems. When it comes to the security of your data, we would rather go one step too far than one step too few.

Do you have an urgent question?

Write to us at support@zep.de and we will get back to you as soon as possible.

Contact support