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CVE-2026-83875 Microsoft CVE debrief

The CVE-2026-83875 vulnerability is an out-of-bounds read issue in the HID Parser Library, which allows an authorized attacker to disclose information locally. This vulnerability affects Windows 10 and Windows 11 systems, particularly those with Human Interface Device (HID) functionality. Defenders should assess exposure and prioritize patching for these systems. The CVE record was published on 2026-10-13T18:59:54.763Z and has not been modified since then. The NVD entry is currently Medium.

Vendor
Microsoft
Product
Windows 10 Version 1809
CVSS
MEDIUM 5.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-10-13
Original CVE updated
2026-10-13
Advisory published
2026-10-13
Advisory updated
2026-10-13

Who should care

Defenders responsible for Windows 10 and Windows 11 systems, especially those with Human Interface Device (HID) functionality, should assess exposure and prioritize patching.

Why it matters

Defenders should prioritize verifying exposure in Windows 10 and Windows 11 systems, especially those with Human Interface Device (HID) functionality, and apply patches to prevent potential information disclosure.

  • Verify potential information disclosure in Windows systems
  • Assess exposure in systems with Human Interface Device (HID) functionality
  • Prioritize patching for Windows 10 and Windows 11 systems

Technical summary

An out-of-bounds read in the HID Parser Library allows an authorized attacker to disclose information locally. This vulnerability affects Windows 10 and Windows 11 systems, especially those with Human Interface Device (HID) functionality. The issue is currently assessed as Medium severity with a CVSS score of 5.5. Defenders should prioritize verifying exposure in these systems and apply patches to prevent potential information disclosure.

Defensive priority

Defenders should prioritize verifying exposure in Windows 10 and Windows 11 systems, especially those with Human Interface Device (HID) functionality.

Recommended defensive actions

  • Verify exposure in Windows 10 and Windows 11 systems
  • Review and apply vendor patches
  • Monitor systems for potential information disclosure

Evidence notes

The CVE record and NVD entry provide details on the vulnerability, but additional information from vendor advisories and patch notes may be necessary for comprehensive understanding.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-83875 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-83875

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-83875 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-83875

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.