Rejetto HTTP File Server (HFS) Remote Code Execution Vulnerability

The findMacroMarker function in parserLib.pas in Rejetto HTTP File Server (HFS or HttpFileServer) allows remote attackers to execute arbitrary programs.

Published 20 Oct 2026Updated 20 Oct 202630 sources
CVSS 10.0 ✓ VERIFIED REFERENCE△ CISA KEV

What happened

The findMacroMarker function in parserLib.pas in Rejetto HTTP File Server (HFS or HttpFileServer) allows remote attackers to execute arbitrary programs.

Affected versions

HTTP File Server (HFS): See original advisory Fixed: See vendor advisory.

Why it matters

This source correlation may provide earlier visibility while structured CVE metadata is still being updated.

Detection & mitigation

  • Review the original advisory and validate affected versions.
  • Apply vendor-provided updates or mitigations when available.

Public PoC references