Shadowserver

Pierluigi Paganini January 27, 2026
Shadowserver finds 6,000+ likely vulnerable SmarterMail servers exposed online

Shadowserver researchers found 6,000+ SmarterMail servers exposed online and likely vulnerable to a critical auth bypass flaw. Nonprofit security organization Shadowserver reported that over 6,000 SmarterMail servers are exposed on the internet and likely vulnerable to attacks exploiting a critical authentication bypass flaw tracked as CVE-2026-23760. Cybersecurity firm watchTowr disclosed the vulnerability on January 8, […]