CVE-2026-34348HighCVSS 6.5

Windows Event Logging Service Information Disclosure Vulnerability

Published
July 17, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-34348 →

📋 Description

Protection mechanism failure in Windows Event Logging Service allows an authorized attacker to disclose information over a network.

🎯 Affected products21

  • Windows 10 Version 1809 for 32-bit Systems
  • Windows 10 Version 1809 for x64-based Systems
  • Windows 10 Version 21H2 for 32-bit Systems
  • Windows 10 Version 21H2 for ARM64-based Systems
  • Windows 10 Version 21H2 for x64-based Systems
  • Windows 10 Version 22H2 for 32-bit Systems
  • Windows 10 Version 22H2 for ARM64-based Systems
  • Windows 10 Version 22H2 for x64-based Systems
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows 11 Version 24H2 for x64-based Systems
  • Windows 11 Version 25H2 for ARM64-based Systems
  • Windows 11 Version 25H2 for x64-based Systems
  • Windows 11 Version 26H1 for ARM64-based Systems
  • Windows 11 version 26H1 for x64-based Systems
  • Windows Server 2019
  • Windows Server 2019 (Server Core installation)
  • Windows Server 2022
  • Windows Server 2025
  • Windows Server 2025 (Server Core installation)

✅ Remediation

KB5099538 (Security Update) — fixed build 10.0.17763.9020 KB5099540 (Security Update) — fixed build 10.0.20348.5386 KB5099539 (Security Update) — fixed build 10.0.19044.7548 KB5099539 (Security Update) — fixed build 10.0.19045.7548 KB5099536 (Security Update) — fixed build 10.0.26100.33158 KB5101650 (Security Update) — fixed build 10.0.26200.8875 KB5099414 (Security Update) — fixed build 10.0.22631.7376 KB5101650 (Security Update) — fixed build 10.0.26100.8875 KB5101649 (Security Update) — fixed build 10.0.28000.2525 KB5089548 (Security Update) — fixed build 10.0.28000.2113

🔗 References (17)