CVE-2025-26390 SQL injection in OZW672

Critical 9.3 Published Updated

Unauthenticated attackers can exploit SQL injection in the web service to bypass authentication and gain Administrator access on Siemens OZW devices.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2025-26390?

CVE-2025-26390 is a critical SQL injection vulnerability in Siemens OZW672, published on 13 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-89

Which versions are affected by CVE-2025-26390?

It affects 2 products.

Products include Siemens Ozw672 Firmware, Siemens Ozw772 Firmware.

How do I fix CVE-2025-26390?

No fix has been published for CVE-2025-26390 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2025-26390 being exploited?

There is no known exploitation of CVE-2025-26390 in the wild and no public exploit code.

Sources

Also known as GHSA-cx4x-4wcx-cq8q.

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