Stack-based buffer overflow in Bluetooth ACPI driver TOSRFEC.SYS and Bluetooth ACPI driver DRFEC.SYS - CVE-2026-35553
Published: April 13, 2026
Vulnerability identifier: #VU125841
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-35553
CWE-ID: CWE-121
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Dynabook
Affected software:
Bluetooth ACPI driver TOSRFEC.SYS
Bluetooth ACPI driver DRFEC.SYS
Bluetooth ACPI driver TOSRFEC.SYS
Bluetooth ACPI driver DRFEC.SYS
Detailed vulnerability description
The vulnerability allows a local user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error. A local administrator can modify certain registry values, trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2026-35553
Install updates from vendor's website.