Source note · Setting up certificates on Cisco Expressway
For the EKU remediation, Expressway-E and Expressway-C must both be upgraded to matching versions.
Checked 2026-09-30
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- eku
- Deployment
- on-premises
- Region
- not restricted
- Release range
- X15.4 and X15.5
- Checked
- 2026-09-30
Sources
- Field Notice: FN74362 - Cisco Expressway: Impact on Secure Communication due to Upcoming Changes to TLS Certificates Issued by Public Certificate Authorities with Client Authentication EKU, Starting May 2026 - Workaround Provided — Cisco Systems · tier 2 current vendor documentation · Workaround/Solution > upgrade note
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up certificates on Cisco Expressway: source note expressway-certificate-setup-eku-matching-versions. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-certificate-setup-eku-matching-versions
BibTeX
@misc{warmtransfer-claim-expressway-certificate-setup-eku-matching-versions,
title = {Setting up certificates on Cisco Expressway: source note expressway-certificate-setup-eku-matching-versions},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/expressway-certificate-setup-eku-matching-versions},
note = {Source note expressway-certificate-setup-eku-matching-versions, checked 2026-09-30}
}