CVE-2026-58619 Overview
CVE-2026-58619 is a use-after-free vulnerability [CWE-416] in the Windows Sensor Data Service that enables local privilege escalation. An authenticated attacker with low privileges can exploit the flaw to elevate to SYSTEM-level access on affected Windows client and server platforms. Microsoft published the advisory on July 14, 2026, covering Windows 10, Windows 11, and Windows Server 2016 through 2025.
The vulnerability requires local access and has high attack complexity, which reduces opportunistic exploitation risk. However, successful exploitation grants full compromise of confidentiality, integrity, and availability on the targeted host.
Critical Impact
A low-privileged local user can trigger a use-after-free condition in the Sensor Data Service to achieve SYSTEM privileges, undermining host-level isolation across all supported Windows versions.
Affected Products
- Microsoft Windows 10 (versions 1607, 1809, 21H2, 22H2)
- Microsoft Windows 11 (versions 24H2, 25H2, 26H1)
- Microsoft Windows Server 2016, 2019, 2022, and 2025
Discovery Timeline
- 2026-07-14 - CVE-2026-58619 published to NVD
- 2026-07-16 - Last updated in NVD database
Technical Details for CVE-2026-58619
Vulnerability Analysis
The Windows Sensor Data Service (SensorDataService) collects and processes data from device sensors such as accelerometers, gyroscopes, and location providers. The service runs as a privileged host process and exposes interfaces to lower-privileged callers. A use-after-free condition [CWE-416] in this service allows an attacker to reference memory that has already been released.
Exploitation requires the attacker to already hold valid credentials on the target system. The high attack complexity indicates the flaw requires specific timing conditions or memory layout manipulation to trigger reliably. Successful exploitation grants code execution in the service's security context, breaking the boundary between standard user and privileged execution.
Root Cause
The defect stems from improper object lifetime management within the Sensor Data Service. An object is freed while a dangling reference remains reachable. Subsequent operations that dereference the stale pointer can be manipulated to redirect control flow or corrupt adjacent heap structures.
Attack Vector
The attack vector is local. An attacker with authenticated access sends crafted requests or triggers race conditions against the Sensor Data Service. By controlling allocation and free timing, the attacker reclaims the freed memory region with attacker-controlled data. Dereferencing the corrupted object then yields arbitrary code execution at the service privilege level, enabling privilege escalation to SYSTEM.
No public proof-of-concept exploit is available at the time of publication, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Detailed technical mechanics are described in the Microsoft CVE-2026-58619 Advisory.
Detection Methods for CVE-2026-58619
Indicators of Compromise
- Unexpected crashes or restarts of the SensorDataService process recorded in the Windows Application or System event logs.
- Creation of new SYSTEM-level processes as child processes of svchost.exe hosting the Sensor Data Service.
- Unusual thread injection or handle duplication targeting the Sensor Data Service host process.
Detection Strategies
- Monitor for anomalous process lineage where a low-privileged user session spawns SYSTEM-context processes shortly after Sensor Data Service activity.
- Baseline normal Sensor Data Service behavior and alert on abnormal API call patterns from non-typical client processes.
- Correlate Windows Error Reporting (WER) crash telemetry for SensorDataService with subsequent privileged process creation events.
Monitoring Recommendations
- Enable process creation auditing (Event ID 4688) with command-line logging to capture escalation attempts.
- Ingest sensor service crash dumps and heap corruption indicators into a centralized log platform for retrospective hunting.
- Track patch compliance across all Windows 10, Windows 11, and Windows Server endpoints to identify unpatched hosts.
How to Mitigate CVE-2026-58619
Immediate Actions Required
- Apply the security updates referenced in the Microsoft CVE-2026-58619 Advisory to all affected Windows endpoints and servers.
- Prioritize patching multi-user systems such as terminal servers, virtual desktop infrastructure, and shared workstations where local privilege escalation carries elevated risk.
- Audit local account and interactive logon rights to reduce the pool of users who could exploit a local vector.
Patch Information
Microsoft has released security updates addressing CVE-2026-58619 for all supported versions of Windows 10, Windows 11, and Windows Server 2016 through 2025. Refer to the Microsoft CVE-2026-58619 Advisory for the specific KB article and update packages that correspond to each affected build.
Workarounds
- Disable the Sensor Data Service (SensorDataService) on systems where sensor functionality is not required, particularly on servers and desktops without location or motion hardware.
- Restrict interactive and remote logon rights on high-value systems to trusted administrative users only.
- Enforce application control policies such as Windows Defender Application Control (WDAC) to limit the tools available to a local attacker attempting to deliver an exploit payload.
# Disable the Sensor Data Service where sensor input is not required
sc.exe config SensorDataService start= disabled
sc.exe stop SensorDataService
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
