Hackers Exploiting Cisco Catalyst SD-WAN Manager 0-Day Flaw to Gain Root-Level Access

A sophisticated threat actor is actively targeting SD-WAN infrastructure at a major service provider. The campaign culminated in the exploitation of a zero-day privilege escalation vulnerability, now tracked as CVE-2026-20245 (CVSS 7.8), in Cisco Catalyst SD-WAN Manager, enabling attackers to silently escalate from a compromised administrative account to full root-level access. CVE-2026-20245 resides in the […] The post Hackers Exploiting Cisco Catalyst SD-WAN Manager 0-Day Flaw to Gain Root-Level Access appeared first on Cyber Security News.