CVE-2017-6371: Synchro Bbs

High severity, CVSS 7.5. EPSS: 4.7% chance of exploitation in the next 30 days.

Synchronet BBS 3.16c for Windows allows remote attackers to cause a denial of service (service crash) via a long string in the HTTP Referer header.

Affected products

• Synchro Bbs: version 3.16c only

Published 2020-02-27. Last modified 2026-06-17.