Networking
Q4 fiscal 2026 networking revenue up 28%, with networking orders up 40%, driven by AI data-center switching.
The numbers
What it is
Cisco's core switching, routing and wireless business, plus the data-center switching used to build AI clusters. It is the largest revenue line at $34.7 billion in fiscal 2026, up from $28.3 billion in fiscal 2025.
Why it matters to the stock. Networking sets the revenue trend for the whole company. Traders watch its order growth because orders lead product revenue, and hyperscale AI demand is now a large part of that growth.
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 adds Live Protect and extended fast upgrades to reduce campus network downtime
Cisco introduced Live Protect, a Cisco-validated runtime control that reduces exposure to a known vulnerability while equipment keeps running, and Extended Fast Software Upgrade (xFSU), which keeps forwarding running through most of a software upgrade.
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 beats fiscal Q4 2026 estimates and guides FY2027 above consensus, but shares fall on margins
Cisco reported fourth-quarter fiscal 2026 revenue of $17.3 billion, up 18%, and non-GAAP EPS of $1.22, up 23%, both above Street expectations.
Cisco repurchases $1.3 billion of stock in fiscal Q3 at an average $80.28
Cisco bought back about 16 million shares for $1.3 billion in its fiscal third quarter, at an average price of $80.28, and returned $2.9 billion to shareholders in total.
Cisco shares fall on February 12 as margin guidance and memory costs weigh
Cisco shares fell sharply on February 12, the day after a revenue and EPS beat, because the company guided margins lower.
Cisco Q2 fiscal 2026 revenue rises 10% to $15.3 billion; FY26 guide $61.2–61.7 billion
Cisco reported fiscal second-quarter 2026 revenue of $15.3 billion, up 10%, with non-GAAP EPS of $1.04, up 11%.