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Cisco warns of critical SD-WAN bug that was actively exploited in zero-day attacks since 2023, as CISA and international partners issue emergency directives (Lawrence Abrams/BleepingComputer)

Lawrence Abrams / BleepingComputer : Cisco warns of critical SD-WAN bug that was actively exploited in zero-day attacks since 2023, as CI...

26 February 2026

Cisco warns of critical SD-WAN bug that was actively exploited in zero-day attacks since 2023, as CISA and international partners issue emergency directives (Lawrence Abrams/BleepingComputer)

Lawrence Abrams / BleepingComputer:
Cisco warns of critical SD-WAN bug that was actively exploited in zero-day attacks since 2023, as CISA and international partners issue emergency directives  —  Cisco is warning that a critical authentication bypass vulnerability in Cisco Catalyst SD-WAN, tracked as CVE-2026-20127 …

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