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.
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History
Thu, 06 Aug 2026 15:30:00 +0000
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Thu, 06 Aug 2026 05:45:00 +0000
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| Title | Stack‑based Buffer Overflow in ELAN Smart‑Pad Driver Causes BSOD |
Thu, 06 Aug 2026 04:30:00 +0000
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| 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. | |
| Weaknesses | CWE-121 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: ELAN
Published:
Updated: 2026-08-06T14:19:21.022Z
Reserved: 2026-08-05T05:41:07.711Z
Link: CVE-2026-18909
Updated: 2026-08-06T14:19:17.961Z
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OpenCVE Enrichment
Updated: 2026-08-06T05:30:16Z