VMware ESXi 8.0 Update 3d (Build 24585383) Installation Guide – Everything You Need to Know

If you’re running a virtualized infrastructure, keeping your ESXi hosts secure and up to date is not just a best practice—it’s a necessity. VMware ESXi 8.0 Update 3d (Build 24585383), available as VMware-ESXi-8.0U3d-24585383-depot.zip, is the latest maintenance release that patches several critical security vulnerabilities and offers enhanced stability.

This guide walks you through everything you need to know about this update—why it matters, how to install it correctly, and what to do if things go wrong. We’ll also include real-world tips, troubleshooting advice, and FAQs to make your update smooth and worry-free.

What is VMware-ESXi-8.0U3d-24585383?

This update is part of VMware’s regular patch cycle and delivers essential bug fixes and security enhancements to VMware ESXi 8.0. Here’s a quick snapshot:

Why This Update Matters

This patch isn’t just routine—it fixes multiple CVEs (Common Vulnerabilities and Exposures) that could allow attackers to bypass security measures or crash your ESXi host. Specifically, it addresses:

• CVE-2025-22224
• CVE-2025-22225
• CVE-2025-22226

If you’re running any production workloads, postponing this update could leave your systems exposed to avoidable threats.

Before You Begin: Pre-Update Checklist

To avoid surprises mid-update, here’s a quick pre-flight checklist:

• Backup your virtual machines and ESXi configuration.
• Place the .zip file on a datastore or an accessible directory.
• Ensure SSH is enabled on your ESXi host.
• Free up enough disk space (at least 2 GB recommended).
• Inform stakeholders about potential downtime.

🛠️ How to Install VMware-ESXi-8.0U3d-24585383-depot.zip (SSH Method)

Step 1: Enable SSH and Access the Host

Login to your ESXi host via SSH (using a tool like PuTTY):

bash

ssh root@your-esxi-ip

Step 2: Enable HTTP Client Firewall (if needed)

bash

esxcli network firewall ruleset set -e true -r httpClient

Step 3: Upload and Install the Update

First, upload the ZIP file to a datastore (e.g., datastore1). Then run:

bash

esxcli software profile update -d /vmfs/volumes/datastore1/VMware-ESXi-8.0U3d-24585383-depot.zip -p ESXi-8.0U3d-24585383-standard

📝 Replace the datastore path if your environment is different.

Step 4: Disable HTTP Client Access

bash

esxcli network firewall ruleset set -e false -r httpClient

Step 5: Reboot the Host

bash

reboot

After reboot, verify the build version:

bash

vmware -v

✅ You should see: VMware ESXi 8.0.3d build-24585383

Alternative: Install Using vSphere Lifecycle Manager (GUI Method)

For environments managed via vCenter:

1. Go to vSphere Lifecycle Manager > Imported Updates.
2. Click Import Updates and select the depot ZIP file.
3. Create a new baseline and attach it to your host/cluster.
4. Scan for compliance and remediate.

This is ideal for managing multiple hosts at once.

Troubleshooting Tips

Issue: max_allowed_packet Error During Install

This usually happens when dealing with large metadata during update. To fix:

1. SSH into your ESXi host.
2. Edit my.cnf:

ini

max_allowed_packet=512M

3. Save and reboot.

Issue: Profile Update Failed

• Try running esxcli software sources profile list -d /path/to/depot.zip to get the correct profile name.
• Use install instead of update if update fails:

bash

esxcli software profile install -d /path/to/depot.zip -p ESXi-8.0U3d-24585383-standard

(This will erase 3rd-party drivers, so use cautiously.)

Pro Tips and Insights

• Always test in a staging environment first before pushing to production.
• If you’re using custom VIBs or drivers, make sure they are compatible with Update 3d.
• Regularly schedule patch cycles to avoid urgent weekend work!
• You can automate updates using PowerCLI if managing at scale.

Final Thoughts

Staying updated with ESXi releases is crucial, especially when security patches are involved. The VMware-ESXi-8.0U3d-24585383-depot.zip update provides important fixes and improvements you don’t want to skip. Whether you prefer command line or GUI, this guide gives you all the tools you need to do it right.

Frequently Asked Questions (FAQs)

1. Is it safe to install this update on a live production server?
You should schedule a maintenance window. While the update is stable, a reboot is required and services will go offline temporarily.

2. Can I roll back if something goes wrong?
Only if you have backups or a snapshot. ESXi doesn’t support native rollback without bootable media or backup tools.

3. Will this update affect my VMs?
Only during the reboot. VMs need to be powered off or suspended. After the update, they’ll run as usual.

4. What’s the difference between ‘install’ and ‘update’ in esxcli?
install replaces the entire image (removes 3rd-party VIBs), while update preserves current drivers and modules.

5. Where can I download the update?
From Broadcom’s (formerly VMware) official customer portal. You must be a licensed user to access it.

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