BugZero | VMware vCenter BugID c415b89a76d0 - If you use an RSA key size smaller than 2048 bits,...

VMware vCenter - Defect ID: c415b89a76d0

If you use an RSA key size smaller than 2048 bits, RSA signature generation fails

VMware vCenter - Defect ID: c415b89a76d0

If you use an RSA key size smaller than 2048 bits, RSA signature generation fails

Last updated on May 7th, 2026

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Severity: N/A

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Lifecycle: N/A

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Bug Details

Status: Known
Impact Category: Security Features Issues
Workaround Available:

Description

Disclaimer

A custom bug ID has been generated as the vendor did not provide one: c415b89a76d0

Overview

Starting from vSphere 8.0, ESXi uses the OpenSSL 3.0 FIPS provider. As part of the FIPS 186-4 requirement, the RSA key size must be at least 2048 bits for any signature generation, and signature generation with SHA1 is not supported.

Workaround

Use RSA key size larger than 2048.

Bug URLs

https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-801-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-802-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-803-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80a-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80b-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80c-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u1a-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u1b-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u1c-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u1d-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u1e-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u2a-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u2b-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u2c-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u2d-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u3a-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u3b-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u3c-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u3d-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u3e-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u3g-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u3h-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vcenter-server-update-and-patch-release-notes/vsphere-vcenter-server-80u3i-release-notes.html https://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/vmware-vsphere-80-release-notes.html

Relevant Products

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Fixed versions: No known fixed versions

Relevant Products

Click on a version to see all relevant bugs

Fixed versions: No known fixed versions

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VMware vCenter - Defect ID: c415b89a76d0

If you use an RSA key size smaller than 2048 bits, RSA signature generation fails

VMware vCenter - Defect ID: c415b89a76d0

If you use an RSA key size smaller than 2048 bits, RSA signature generation fails

Last updated on May 7th, 2026

BugZero Risk Score0.0 Coming soon

Bug Details

Disclaimer

Overview

Workaround

Bug URLs

Top VMware vCenter Defects

Ready to prevent the next vendor outage?

Links

BugZero Risk Score
0.0 Coming soon