Security
Q4 fiscal 2026 security revenue up 14% year over year; full-year fiscal 2026 revenue $8.2 billion.
The numbers
What it is
Firewalls, secure access (SASE), Duo identity, XDR and AI security products. Full-year fiscal 2026 revenue rose only about 2% from fiscal 2025, so the Q4 acceleration is the number to watch.
Why it matters to the stock. Security is the main offset to Cisco's hardware cycle and is the part of the portfolio most exposed to competition from Palo Alto Networks and CrowdStrike.
News
Cisco discloses actively exploited CVSS 9.8 authentication bypass in Catalyst SD-WAN Manager
Cisco disclosed CVE-2026-76504, a critical authentication bypass in Catalyst SD-WAN Manager that lets an unauthenticated remote attacker reach the API with admin privileges.
Cisco and Rafay link Nexus One and Secure Firewall to automate AI cloud tenant setup
Cisco and Rafay announced integrations that turn a single tenant request on the Rafay platform into network and security configuration.
Cisco launches AI POD for Splunk, bringing self-managed Splunk AI to on-premises customers
At Splunk .conf in Denver, Cisco announced Cisco AI POD for Splunk, part of the Cisco Secure AI Factory with NVIDIA, which is available now for on-premises, private cloud and air-gapped deployments.