Wire · regulatory
Cisco SD-WAN Manager hit by zero-day admin access attack
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Fusion42 · 1 October 2026 · Fusion42 review
Cisco's SD-WAN Manager had a critical zero-day vulnerability allowing attackers to bypass authentication and gain admin access, which Cisco has now patched. Customers must upgrade affected versions immediately and investigate compromise indicators as the flaw risks full network control.
This Wire brief sits within Fusion42's coverage of Cybersecurity, Enterprise Software and Cloud Infrastructure.
◆ ◆ The Wire takeaway
You must upgrade Cisco SD-WAN Manager now or face critical admin-level breach risk that can spread across thousands of devices. If you manage enterprise networks, start incident checks immediately to clear backdoors attackers might have installed.
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1 source · 1 Oct 2026
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