CVE-2026-56936: Wacom HID driver out-of-bounds write in wacom_sys.c

CVE-2026-56936 · Severity: medium · CVSS 6.8 · Published 2026-10-06

A vulnerability in the Wacom HID (Human Interface Device) driver allows an attacker with physical access to escalate privileges on Android Pixel devices without needing user interaction or additional permissions. An attacker could exploit this to gain elevated system privileges and compromise device security.

Technologies: Google Pixel. Vendors: Google.

Quick answers

Is CVE-2026-56936 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-56936 being exploited in the wild.
How severe is CVE-2026-56936?
Medium severity, with a CVSS score of 6.8, published 6 October 2026.
Which products and versions are affected?
Google Pixel.
Is there a fix for CVE-2026-56936?
Yes: fixed in Android security patch level 2026-10-05 or later. Until then: Update your Pixel device to security patch level 2026-10-05 or later to address this vulnerability. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-56936 attacked?
It is attacked with physical access, in device firmware.
Am I affected by CVE-2026-56936?
Check whether you run Google Pixel. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • Fixed in: Android security patch level 2026-10-05 or later

Update your Pixel device to security patch level 2026-10-05 or later to address this vulnerability.

Technical details

The vulnerability is an out-of-bounds write in the wacom_hid_set_device_mode function of wacom_sys.c caused by missing bounds checking. This allows privilege escalation (EoP) through the Wacom HID subsystem with physical attack vector. The fix is available in the Android security patch level 2026-10-05 or later.

Affected products

  • Google Pixel

Timeline

  • 2026-10-06: disclosed

References

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