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Endress+Hauser: FieldPort SFP50 Memory Corruption in Bluetooth Controller Firmware

VDE-2022-006
Last update
03/24/2022 11:48
Published at
03/24/2022 11:48
Vendor(s)
Endress+Hauser AG
External ID
VDE-2022-006
CSAF Document

Summary

Possible memory corruption in BT controller when it receives an oversized LMP packet over 2-DH1 link and leads to denial of service.

Impact

Please consult the CVE entry above.

Affected Product(s)

Model no. Product name Affected versions
SFP50-* FieldPort SFP50 (mobiLink) Firmware 1.31<=1.40
SMT70-*MJ, SMT70-*+MJ mobiLink BT and USB modem CN+KR in bundle with Field Xpert SMT70 Firmware 1.31<=1.40
SMT77-*+MJ, SMT77-*MJ mobiLink BT and USB modem CN+KR in bundle with Field Xpert SMT77 Firmware 1.31<=1.40
SMT50-*MH mobiLink Bluetooth and USB modem in bundle with Field Xpert SMT50 Firmware 1.31<=1.40
SMT70-*MH, SMT70-*+MH mobiLink Bluetooth and USB modem in bundle with Field Xpert SMT70 Firmware 1.31<=1.40
SMT77-*+MH, SMT77-*MH mobiLink Bluetooth and USB modem in bundle with Field Xpert SMT77 Firmware 1.31<=1.40

Vulnerabilities

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Published
09/22/2025 14:58
Weakness
Out-of-bounds Write (CWE-787)
Summary

Possible memory corruption in BT controller when it receives an oversized LMP packet over 2-DH1 link and leads to denial of service in BlueCore

References

Mitigation

Endress+Hauser recommends using the FieldPort SFP50 only in secure environment and to allow access tothe devices only to authorized persons.

Remediation

Currently no fix planned from chip supplier.

Revision History

Version Date Summary
1 03/24/2022 11:48 Initial revision.