CVE intelligence

CVE-2026-81017

Vulnerability intelligence

Published Sep 11, 2026Sources checked Nov 3, 2026

8.4HIGHCVSS out of 10

What this means

Review the available evidence

CVE-2026-81017 and is rated High severity with a CVSS score of 8.4. It is not in the current CISA KEV record we collected. That does not prove exploitation has not occurred.

CISA KEVNot listedBased on the latest collected catalog

EPSS0.2%Estimated 30-day exploitation probability

Ransomware useNot markedCISA KEV ransomware field

Threat actors0Source-linked actor relationships

Overview

What is CVE-2026-81017?

In the Linux kernel, the following vulnerability has been resolved:

platform/chrome: sensorhub: Bound the EC-reported sensor number

Each EC FIFO event carries an 8-bit sensor number (in->sensor_num). cros_ec_sensorhub_ring_handler() validates the FIFO event count, the per-read count and the ring bound, but not the sensor number, which cros_ec_sensor_ring_process_event() then uses unchecked to index sensorhub->batch_state[] - allocated with only sensorhub->sensor_num entries.

A sensor number of sensor_num or larger is an out-of-bounds read and write of batch_state[].

Validate the sensor number in the ring handler, where each event is read from the EC, and drop a malformed event before it is used.

Source: NVD