CVEvulnerability
CVE-2026-18909
5.6 MEDIUM
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-08-06
- Last modified
- 2026-10-23
- Assigner
- 36106deb-8e95-420b-a0a0-e70af5d245df
- CVSS 4.0 (36106deb-8e95-420b-a0a0-e70af5d245df)
- 5.6 MEDIUM — CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:N/R:U/V:X/RE:X/U:X
- CVSS 3.1 (36106deb-8e95-420b-a0a0-e70af5d245df)
- 4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-121
Description
A stack-based buffer overflow vulnerability exists in ELAN Microelectronics Corp. ELAN Smart-Pad on Windows (ETD.sys and ETDSMBus.sys). During Intel SMBus recovery, ETDSMBus.sys does not enforce an upper-bound check on the hardware-derived report count, allowing an out-of-range value to be forwarded to ETD.sys where it is used as a loop counter for a stack buffer copy without destination size validation. A local attacker with standard user privileges can trigger a kernel bugcheck (BSOD 0xF7 DRIVER_OVERRAN_STACK_BUFFER), resulting in denial of service. This issue affects ELAN Smart-Pad through ETD24.21.52.3.
Related
Weakness · CWE (1)
- CWE-121 Stack-based Buffer Overflow weakness