Windows Antivirus | May 2026 | Platform 4.18.26050.15 | Engine 1.1.26050.11
Analysis / inference: Microsoft Defender for Endpoint released platform update 4.18.26050.15 with fixes for remote-share symlink scans and watchdog timers.
- Dates
- Source and collection dates not recorded
- Source
- Microsoft Defender for Endpoint releases · Limited verification
- Classification
- Microsoft Security
Section 01 · Summary analysis
The Microsoft Defender platform was updated to version 4.18.26050.15 and engine version 1.1.26050.11 on June 9, 2026, including bug fixes for remote-share symlinks, mpcmdrun non-ASCII output, and network protection watchdog timers.
AI summary / analysis; claims are not independently verified. Check the primary source before acting.
Section 02 · Analysis
SecOps Signal analysisEnsures endpoint protection coverage against specific scanning blind spots such as symlinks and reliability issues in network protection.
Improves detection reliability for files accessed via symlinks on remote shares and restores correct operation of network protection watchdog timers.
Section 03 · Recommended actions
- Update Microsoft Defender for Endpoint platform to version 4.18.26050.15 or higher.
- Monitor client update rings to ensure successful distribution of the June 2026 platform release.
- Verify that Defender platform version 4.18.26050.15 or later is deployed across managed Windows endpoints.
- Check mpcmdrun scan log output formatting for localizations on affected endpoints.