CVE-2026-42807

Code execution via unchecked bridge packet length

Published Sep 10, 2026 · Updated Sep 10, 2026

Heap overflow in Bosch Sensortec COINES SDK 2.10 through 2.12.2 allows attackers to crash the host process or execute code. The PC bridge decoder in bridge_decoder.c passes an external device's packet length to mqueue_add_data, whose memcpy can copy about 3 KB into a 255-byte queue slot. Exploitation requires a malicious or compromised USB or BLE peripheral and user interaction; the overwrite corrupts adjacent host heap metadata.

CVSS severity8.0
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap overflow in Bosch Sensortec COINES SDK 2.10 through 2.12.2 allows attackers to crash the host process or execute code. The PC bridge decoder in bridge_decoder.c passes an external device's packet length to mqueue_add_data, whose memcpy can copy about 3 KB into a 255-byte queue slot. Exploitation requires a malicious or compromised USB or BLE peripheral and user interaction; the overwrite corrupts adjacent host heap metadata.

The record

CVE
CVE-2026-42807
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
Bosch Sensortec
Product
COINES SDK
Classifications
CWE-122, T1200
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=2.10 <=2.12.2

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Bosch Sensortec · COINES SDKversion=2.10 <=2.12.2

Published CVSS scores

8.0Bosch PSIRTCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-122Heap-based Buffer Overflow
T1200Hardware Additions

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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