Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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:X/R:X/V:X/RE:X/U:X
Local admin must open the driver and send IOCTLs, so AV:L and PR:H with low complexity; physical memory read/write yields full C/I/A impact within an unchanged kernel scope.
Primary rating from Vendor (ASUS).
CVSS VectorVendor: ASUS
Lifecycle Timeline
2DescriptionCVE.org
Untrusted Pointer Dereference in ASUS System Control Interface v3, ASUS System Control Interface, and ASUS Business Manager allows a local administrator to perform arbitrary physical memory read and write operations via crafted IOCTL requests to the driver, bypassing OS-enforced memory protections. Refer to the ' Security Update for ASUS System Control Interface ' section on the ASUS Security Advisory for more information.
AnalysisAI
Arbitrary physical memory read/write in the ASUS System Control Interface (v3 and legacy) and ASUS Business Manager driver allows a local administrator to issue crafted IOCTL requests that bypass OS-enforced memory protections, per an ASUS-published advisory. The flaw (CWE-822, Untrusted Pointer Dereference) turns the signed ASUS driver into a read/write primitive over physical memory, enabling privilege escalation from admin to kernel and potential defense evasion. No public exploit identified at time of analysis, and the issue is not listed in CISA KEV; EPSS was not provided.
Technical ContextAI
The affected component is ASUS's user-to-kernel bridge driver shipped with the System Control Interface (SCI) v3 and legacy SCI, and with ASUS Business Manager - utilities preinstalled on ASUS commercial/enterprise notebooks to manage hardware features. The vulnerability class is CWE-822 (Untrusted Pointer Dereference): the driver accepts a pointer or address value from user-controlled IOCTL input and dereferences it without validating that it references a safe, authorized kernel-managed object. Because the handler exposes physical-memory read and write semantics, an attacker-supplied address is mapped and accessed directly, sidestepping virtual-memory isolation, SMEP/SMAP, and other OS-enforced protections. This is the classic 'signed vulnerable driver' (BYOVD-adjacent) pattern where a legitimate, code-signed driver provides an unauthenticated memory primitive to any process able to open the device handle.
RemediationAI
Apply the ASUS-provided update referenced in the 'Security Update for ASUS System Control Interface' section of the ASUS Security Advisory (https://www.asus.com/security-advisory); a fixed version is indicated by the vendor advisory but no exact patched version number is present in the provided data, so confirm the target build directly from that advisory (Patch available per vendor advisory). Update ASUS System Control Interface v3, the legacy System Control Interface, and ASUS Business Manager to the versions ASUS designates as fixed via ASUS DriverHub or Windows Update. Where immediate patching is not possible, compensating controls include uninstalling or disabling the ASUS System Control Interface / Business Manager components if the hardware-management features are unused (trade-off: loss of ASUS function-key, sensor, and manageability features), and enforcing Microsoft's vulnerable/blocklisted driver protections (WDAC / HVCI / Microsoft recommended driver block rules) to prevent loading the vulnerable driver version (trade-off: may break the utility until updated). Since exploitation requires local administrator rights, tightening local admin membership and monitoring for unexpected device-handle opens and raw physical-memory IOCTLs to the driver reduces exposure.
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-44589
GHSA-cvqr-f3j3-pp87