CVE-2026-93695 Progress CVE debrief

Who should care

Defenders managing Progress ShareFile Storage Zones Controller deployments should assess exposure and apply patches. This includes verifying the version and exposure of Progress ShareFile Storage Zones Controller, monitoring FileCopyService usage, and reviewing compensating controls for exposed systems. Security teams and operators should prioritize verifying exposure and applying patches to prevent potential remote code execution and data tampering.

Why it matters

CVE-2026-93695 allows attackers to write arbitrary content to filesystem locations writable by the service account, potentially leading to remote code execution. Defenders should verify exposure, apply patches, and monitor FileCopyService usage.

• Remote code execution when an executable IIS-served directory is writable
• Potential data tampering through arbitrary file writes
• Required verification of affected versions and exposure
• Potential lateral movement through compromised service account

Technical summary

Progress ShareFile Storage Zones Controller FileCopyService uses remote file identifiers to construct local temporary file paths without containment, allowing arbitrary file writes. This can result in remote code execution when an executable IIS-served directory is writable. The issue affects versions up to 5.12.6. Official vendor documentation references a security vulnerability, and defenders should verify exposure and apply patches. The CVE Program and NVD records confirm the vulnerability, and defenders should monitor FileCopyService usage.

Defensive priority

Defenders should prioritize verifying exposure and applying patches for Progress ShareFile Storage Zones Controller versions up to 5.12.6.

Recommended defensive actions

• Verify Progress ShareFile Storage Zones Controller version and exposure
• Apply patches for versions up to 5.12.6
• Monitor FileCopyService usage and filesystem writes
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

The CVE Program and NVD records confirm arbitrary file write vulnerability in Progress ShareFile Storage Zones Controller FileCopyService. Official vendor documentation references a security vulnerability.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.