Cisco has disclosed CVE-2026-76519, a critical flaw in its Secure Email Gateway rated 9.8 on the CVSS scale, which attackers exploited as a zero-day, according to the source report.
Customers running the affected product are urged to apply the vendor's guidance.
Source: theregister.com, reported 10-14. https://www.theregister.com/security/2026/10/14/cisco-make-me-root-email-bug-exploited-as-a-0-day-by-unknown-crims/5303168