Cisco Warns of Attackers Exploiting Critical Authentication Bypass in SD-WAN Manager

Attackers are exploiting a critical flaw in Cisco Catalyst SD-WAN Manager, the system companies use to manage their Cisco SD-WAN networks, Cisco said in an advisory on September 30.

The flaw, CVE-2026-76504, could allow a remote attacker with no login access to use the Manager’s API as the admin user. Fixed releases are available, and there is no workaround.

CVE-2026-76504 carries a

Source: The Hacker News

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