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Cisco is warning that a critical Catalyst SD-WAN Controller authentication bypass flaw, tracked as CVE-2026-20182, was actively exploited in zero-day attacks that allowed attackers to gain administrative privileges on compromised devices. [...]
Emergency CISA Directive Lands as DHS Shutdown Strains Cyber OperationsThe Cybersecurity and Infrastructure Security Agency issued a directive Wednesday ordering civilian agencies to secure and hunt for compromise in vulnerable Cisco SD-WAN systems after officials observed active exploitation - while warning that shutdown-related disruptions heighten operational risk.
Cisco is warning that a critical authentication bypass vulnerability in Cisco Catalyst SD-WAN, tracked as CVE-2026-20127, was actively exploited in zero-day attacks that allowed remote attackers to compromise controllers and add malicious rogue peers to targeted networks. [...]
Vendor Ships Emergency Fixes, Warning Flaw Facilitates Full System CompromiseAttackers are targeting a zero-day vulnerability in Cisco's Unified Communications and Webex products that facilitates remote code execution and root-level access to the underlying operating system, risking full system compromise. Cisco has released patches, warning that no workarounds exist.