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CVE-2026-42805: Product identification pending

Severity

8.4 (HIGH)

Vendor

BOSCH

Patch status

Unknown

Published

2026-09-10T09:17:02.013

Modified

2026-09-10T09:17:02.013

Why it matters

High-severity vulnerability requiring prioritized review.

Recommended admin actions

• Review and patch based on exposure, asset criticality, and business impact.

Technical summary

A stack-based buffer overflow vulnerability exists in the Bosch Sensortec BHI385 SensorAPI (C library) within the debug message parser function bhi385_parse_debug_message (located in bhi385_parse.c). The function parses FIFO events and extracts an 8-bit message length directly from the attacker-controlled event payload (callback_info->data_ptr[0]) without enforcing bounds checks or clamping the value. When copying the payload into a fixed-size stack buffer of 17 bytes (uint8_t debug_msg[17]) via memcpy, providing a length byte greater than 16 causes the function to write past the allocated stack boundary. This memory corruption can be triggered by a malicious or compromised sensor or bus participant, leading to a firmware crash, Denial of Service (DoS), or potentially the execution of arbitrary code via adjacent stack data corruption.

View the official NVD record for CVE-2026-42805

CVE data is sourced from NVD/CNA records and optional enrichment. Validate against the vendor advisory before taking production action.