CVE-2025-26390: Siemens OZW672 Firmware

Critical severity, CVSS 9.8. EPSS: 0.6% chance of exploitation in the next 30 days.

A vulnerability has been identified in OZW672 (All versions < V6.0), OZW772 (All versions < V6.0). The web service of affected devices is vulnerable to SQL injection when checking authentication data. This could allow an unauthenticated remote attacker to bypass the check and authenticate as Administrator user.

Affected products

• Siemens OZW672 Firmware: before 6.0 (fixed in 6.0)
• Siemens OZW772 Firmware: before 6.0 (fixed in 6.0)

Published 2025-05-13. Last modified 2026-06-17.