CVE-2018-16555: Siemens Scalance s602 Firmware

Medium severity, CVSS 5.4. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability has been identified in SCALANCE S602 (All versions < V4.0.1.1), SCALANCE S612 (All versions < V4.0.1.1), SCALANCE S623 (All versions < V4.0.1.1), SCALANCE S627-2M (All versions < V4.0.1.1). The integrated web server could allow Cross-Site Scripting (XSS) attacks if unsuspecting users are tricked into accessing a malicious link. User interaction is required for a successful exploitation. The user must be logged into the web interface in order for the exploitation to succeed. At the stage of publishing this security advisory no public exploitation is known.

Affected products

• Siemens Scalance s602 Firmware: before v4.0.1.1 (fixed in v4.0.1.1)
• Siemens Scalance s612 Firmware: before 4.0.1.1 (fixed in 4.0.1.1)
• Siemens Scalance s623 Firmware: before 4.0.1.1 (fixed in 4.0.1.1)
• Siemens Scalance s627-2m Firmware: before 4.0.1.1 (fixed in 4.0.1.1)

Published 2018-12-13. Last modified 2026-06-17.