Cisco security flaw

Attackers are exploiting a critical flaw in Cisco Secure Email Gateway that lets a sender with no login write files to the appliance's operating system, Cisco said in an advisory on Wednesday. The attacker sends an email with a crafted attachment through the gateway and, if it succeeds, could then run commands as root. The appliance filters an organization's email for spam, malware,

Published 16-Oct-2026 19:00 UTC · First seen 14-Oct-2026 20:31 UTC

Sources

• The Hacker News · 14-Oct-2026