CVE-2026-15706 PUBLISHED

Missing Authentication for Critical Function in Management API in Baylan Water Meters's BMS

Assigner: TR-CERT
Reserved: 14.07.2026 Published: 20.08.2026 Updated: 20.08.2026

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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS Score: 9.8

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	High

CVSS 3.1

Product Status

Vendor	Baylan Measuring Instruments Industry and Trade Inc.
Product	Baylan Smart Meter Management Application (BMS)
Versions	Default: unaffected affected from 0 to v1.1.10.142 (excl.)

Credits

Musa Şana finder

References

https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-0881

Problem Types

CWE-306 Missing authentication for critical function CWE

Impacts

CAPEC-115 Authentication Bypass