{"cve":"CVE-2021-28685","nvd":{"published":"2021-04-08T11:15:12.820","modified":"2026-06-17T03:46:47.550","status":"Modified","description":"AsIO2_64.sys and AsIO2_32.sys in ASUS GPUTweak II before 2.3.0.3 allow low-privileged users to interact directly with physical memory (by calling one of several driver routines that map physical memory into the virtual address space of the calling process) and to interact with MSR registers. This could enable low-privileged users to achieve NT AUTHORITY\\SYSTEM privileges via a DeviceIoControl.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://gist.github.com/DStraghkov/fba4994ac4bb3a6e2940b21743563df0","https://www.asus.com/Static_WebPage/ASUS-Product-Security-Advisory/","https://gist.github.com/DStraghkov/fba4994ac4bb3a6e2940b21743563df0","https://www.asus.com/Static_WebPage/ASUS-Product-Security-Advisory/"],"products":["asus:gputweak_ii"],"source":"nvd","synced_at":"2026-10-19T21:17:01.373894544+00:00"},"epss":{"cve":"CVE-2021-28685","score":0.00316,"percentile":0.24561,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}