Findings

CVE-2026-34338

Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

Published May 12, 2026 · updated Jun 17, 2026 · microsoft windows 10 1607

Use after free in Windows Telephony Service 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 Windows Telephony Service allows an authorized attacker to elevate privileges locally.

  2. Jun 17, 2026 · NIST NVD

    Updated

    Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

Affected

  • cpe microsoft/windows 10 1607version unspecified
  • cpe microsoft/windows 10 1809version unspecified
  • cpe microsoft/windows 10 21h2version unspecified
  • cpe microsoft/windows 10 22h2version unspecified

Sources

  • CVE.orgVulnerability recordCVE-2026-34338

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-34338

    Use after free in Windows Telephony Service allows an authorized attacker to elevate privileges locally.

    nvd.nist.gov

References