Cisco warns of new SD-WAN zero-day exploited in attacks

Reported by BleepingComputer (Sergiu Gatlan)

Summary by Cyber Security News30 Sep 2026, 16:46 CEST

About this summary. This is a short, independently written summary of an article first published by BleepingComputer. Cyber Security News did not report or verify the underlying story. Read the original: https://www.bleepingcomputer.com/news/security/cisco-warns-of-new-sd-wan-authentication-bypass-zero-day-exploited-in-attacks/

Cisco warns of new SD-WAN zero-day exploited in attacks — Image: BleepingComputer

Cisco released security updates to address a critical zero-day in the Catalyst SD-WAN Manager (tracked as CVE-2026-76504) that attackers are actively exploiting to escalate to admin privileges.

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