A vulnerability in the Thesycon DPC Latency Checker driver (dpc.sys) thru 1.4.0 allows local unprivileged users to cause a denial-of-service (BSOD) condition on Windows systems. The driver exposes an IOCTL interface (0x81772008) that accepts user-controlled input without validating pointers before passing them to kernel APIs. Specifically, it dereferences a user-supplied pointer and uses the resulting value in a call to ExSetTimerResolution, leading to an arbitrary kernel memory access. Exploiting this flaw results in a system crash.
History

Wed, 09 Sep 2026 21:45:00 +0000

Type Values Removed Values Added
Title Kernel Pointer Dereference in Thesycon DPC Latency Checker Driver Causes System Crash
Weaknesses CWE-119
CWE-416

Wed, 09 Sep 2026 19:45:00 +0000

Type Values Removed Values Added
Title Kernel Pointer Dereference in Thesycon DPC Latency Checker Driver Causes System Crash
Weaknesses CWE-119
CWE-416

Wed, 09 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 09 Sep 2026 18:45:00 +0000

Type Values Removed Values Added
Description A vulnerability in the Thesycon DPC Latency Checker driver (dpc.sys) thru 1.4.0 allows local unprivileged users to cause a denial-of-service (BSOD) condition on Windows systems. The driver exposes an IOCTL interface (0x81772008) that accepts user-controlled input without validating pointers before passing them to kernel APIs. Specifically, it dereferences a user-supplied pointer and uses the resulting value in a call to ExSetTimerResolution, leading to an arbitrary kernel memory access. Exploiting this flaw results in a system crash.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-09T00:00:00.000Z

Updated: 2026-09-09T18:57:11.251Z

Reserved: 2025-06-16T00:00:00.000Z

Link: CVE-2025-51619

cve-icon Vulnrichment

Updated: 2026-09-09T18:56:33.332Z

cve-icon NVD

Status : Deferred

Published: 2026-09-09T19:17:26.563

Modified: 2026-09-09T20:11:44.187

Link: CVE-2025-51619

cve-icon Redhat

No data.