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OpenAdvisories
Medium VDE-2026-048 1 CVE

VEGA: Missing Authentication for critical function in VEGAPULS Bluetooth products

Published May 4, 2026 · Updated Oct 2, 2026 · Revision 4

Vendor: vega Product: CVE Reference Score Product: VEGAPULS 11 with Bluetooth Product: VEGAPULS C 11 with Bluetooth Product: VEGAPULS C 21 Three-wire SDI12 Product: VEGAPULS C 22 Three-wire SDI12 Product: VEGAPULS C 23 Three-wire SDI12

Summary

Vulnerable components expose sensitive information to unauthorized actors through an unsecured configuration interface. Vulnerable firmware releases contain an unsecured configuration interface that allows retrieval of sensitive information such as hashed credentials.

It was found that users with no or low rights can access information from devices that should not be available to them.

An attacker can use this information to impersonate authorized users.

Details

Impact
An authenticated attacker with adjacent access can obtain sensitive information, potentially enabling authenticated device modification.

Mitigation
Implement access controls for physical interfaces to prevent unauthorized access.

Remediation
Update to the fixed firmware versions listed in this advisory. Rotate any credentials used on affected devices as they may have been compromised. Contact VEGA Support if emergency code rotation is necessary based on your risk assessment.

Fixed version:

* Firmware 1.2.3 installed on VEGAPULS 11 with Bluetooth
* Firmware 1.2.3 installed on VEGAPULS C 11 with Bluetooth
* Firmware 1.3.2 installed on VEGAPULS C 21 Three-wire SDI12
* Firmware 1.3.2 installed on VEGAPULS C 22 Three-wire SDI12
* Firmware 1.3.2 installed on VEGAPULS C 23 Three-wire SDI12

Vulnerabilities 1

Revision history

  1. #1.0.3

    Fixed version range name and vendor name

  2. #1.0.2

    Added fixed version to document notes remediation

  3. #1.0.1

    Updated Title

  4. #1.0.0

    Initial Release

References