In the Release 15 security guide, the default validity of self-signed certificates is five years.

Checked 2026-09-25

By default, the validity period of all self-signed certificate is five years.
Vendor
Cisco
Product
Unified Communications Manager
Subsystem
certificate-management
Deployment
on-premises
Region
not restricted
Release range
14 and 15 and SUs
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Unified CM certificate renewal: source note cucm-certificate-renewal-self-signed-default-5y. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-certificate-renewal-self-signed-default-5y

BibTeX

@misc{warmtransfer-claim-cucm-certificate-renewal-self-signed-default-5y,
  title  = {Unified CM certificate renewal: source note cucm-certificate-renewal-self-signed-default-5y},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-certificate-renewal-self-signed-default-5y},
  note   = {Source note cucm-certificate-renewal-self-signed-default-5y, checked 2026-09-25}
}

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