CVE Catalog

CVE-2025-51619

MediumCVSS 5.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.10%

1th percentile - higher than 1% of all known CVEs

Summary

In the Thesycon DPC Latency Checker driver (dpc.sys) through 1.4.0, there is a vulnerability that allows local unprivileged users to cause a denial-of-service (BSOD) 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 arbitrary kernel memory access and system crash.

Risk Assessment

A local unprivileged user can intentionally trigger a blue screen of death, leading to system unavailability and potential data loss.

Recommendation

It is recommended to update the dpc.sys driver to a version newer than 1.4.0 if available, or remove the driver if not essential.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS