CVE-2026-65933 PUBLISHED

BT122 malformed packet with increased length field causes memory leak

Assigner: Silabs
Reserved: 23.07.2026 Published: 13.08.2026 Updated: 13.08.2026

A malformed Bluetooth connection request message can cause the BT122 to leak potentially sensitive information. See vulnerability B-E4 in the related paper below.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS Score: 5.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	Low	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	silabs.com
Product	BT122
Versions	Default: unaffected affected from 0 to 1.4.0 (incl.)

References

https://community.silabs.com/068Vm00000x0Yqy
https://arxiv.org/pdf/2409.02905

Problem Types

CWE-126 Buffer over-read CWE

Impacts

CAPEC-123 Buffer Manipulation