CVE-2026-15706 Missing Authentication for Critical Function in Management API in Baylan Water Meters's BMS

Critical 9.8 Published Updated

Attackers can bypass authentication to access critical functions in the Baylan Smart Meter Management Application, requiring an upgrade to secure the system.

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-2026-15706?

CVE-2026-15706 is a critical missing authorization vulnerability in Baylan Smart Meter Management Application (BMS), published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Missing authentication for critical function vulnerability in Baylan Measuring Instruments Industry and Trade Inc. Baylan Smart Meter Management Application (BMS) allows Authentication Bypass.

This issue affects Baylan Smart Meter Management Application (BMS): before v1.1.10.142.

Weakness: CWE-306

Which versions are affected by CVE-2026-15706?

How do I fix CVE-2026-15706?

No fix has been published for CVE-2026-15706 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-15706 being exploited?

There is no known exploitation of CVE-2026-15706 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-v77m-pgr8-9w4g.

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