Cisco SD-WAN vulnerability CVE-2026-20303 and CVE-2026-20304 reach CVSS 9.9. Cisco urges Catalyst SD-WAN customers to patch now.
Cisco Advisory
Cisco IOS XE vulnerability CVE-2026-20272 hits CVSS 9.8 and CVE-2026-20267 scores 9.0. Cisco urges customers to patch now.
Cisco alerts on a critical 9.9 CVSS flaw in ISE. Even "Read-Only" admins can escalate to root and trigger a total network lockout. Patch immediately.