ZeroDay Findings
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Findings

CVE-2026-40418

Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.

Published May 12, 2026 · updated Jun 17, 2026 · microsoft 365 apps

Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 12, 2026 · NIST NVD

    Detected

    Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.

Affected

  • cpe microsoft/365 appsversion unspecified
  • cpe microsoft/office2019
  • cpe microsoft/office long term servicing channel2021
  • cpe microsoft/office long term servicing channel2024

Sources

  • CVE.orgVulnerability recordCVE-2026-40418

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-40418

    Use after free in Microsoft Office allows an authorized attacker to elevate privileges locally.

    nvd.nist.gov

References