Linux | September 2026 | 101.26081.0010
Analysis / inference: Microsoft released Defender for Endpoint for Linux version 101.26081.0010, resolving identity duplication in cloned VMs and SIGILL crashes on older processors.
- Dates
- Source and collection dates not recorded
- Source
- Microsoft Defender for Endpoint releases · Limited verification
- Classification
- Microsoft Security
Section 01 · Summary analysis
Version 101.26081.0010 resolves a bug where cloned Linux virtual machines retained identical machine identifiers and fixes SIGILL crashes on processors lacking SSE4.1 support.
AI summary / analysis; claims are not independently verified. Check the primary source before acting.
Section 02 · Analysis
SecOps Signal analysisFailing to address duplicate device identities or SIGILL crashes on older Linux processors compromises endpoint visibility and agent stability in Microsoft Defender for Endpoint.
Cloned Linux virtual machines will now correctly report unique identities, preventing telemetry collision and improving host inventory accuracy in the security portal.
Section 03 · Recommended actions
- Update Microsoft Defender for Endpoint on Linux to version 101.26081.0010 across affected environments.
- Verify if Linux virtual machine clones within the environment are now reporting distinct Microsoft Defender for Endpoint device identities.
- Check Linux endpoints with processors lacking SSE4.1 support to confirm resolution of SIGILL agent crashes.