CVE-2026-98206 Input: cyttsp5 - clamp the HID report size before memcpy
A missing bounds check in the cyttsp5 input driver allows a local attacker to trigger memory corruption via a crafted HID report size.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-98206?
CVE-2026-98206 is a memory corruption vulnerability in Linux, published on 6 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
Input: cyttsp5 - clamp the HID report size before memcpy
The size field comes from the device and is used as the memcpy() length into response_buf, which is CY_MAX_INPUT bytes.
Which versions are affected by CVE-2026-98206?
How do I fix CVE-2026-98206?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-98206 being exploited?
There is no known exploitation of CVE-2026-98206 in the wild and no public exploit code.
Sources
Also known as AZL-106341, BELL-CVE-2026-98206, DEBIAN-CVE-2026-98206, GHSA-47j8-q43r-w9mg, UBUNTU-CVE-2026-98206.