CVE-2026-63956
EPSS 0.21%
Description
In the Linux kernel, the following vulnerability has been resolved: USB: serial: cypress_m8: fix memory corruption with small endpoint Make sure that the interrupt-out endpoint max packet size is at least eight bytes to avoid user-controlled slab corruption or NULL-pointer dereference should a malicious device report a smaller size.
How to fix CVE-2026-63956
To remediate CVE-2026-63956, upgrade the affected package to a fixed version below.
- Debian/linux—upgrade to 5.10.259-1 or later
Is CVE-2026-63956 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 5.10.259-1