ReviewHigh

CVE-2026-16139

Progress ShareFile Storage Zones Controller

In Progress ShareFile Storage Zones Controller versions <= 5.12.5 and <= 6.0.2, an authenticated zone administrator can exploit improper validation in the download preparation flow, enabling attacker-controlled files to be written outside the intended preparation directory. This can lead to remote code execution in v5 versions. Remote code execution is not confirmed on v6 versions.

CVSS: 7.2
EPSS: 0.65%
CISA KEV: Not listed
Published: 2026.08.17

PRIORITY ASSESSMENT

Review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.65%

Technical severityCVSS 7.2

Vulnerability overview

Affected product and versions

Product: Progress ShareFile Storage Zones Controller
Affected versions: <= 5.12.5, >= 6.0.0 <= 6.0.2
Fixed versions: No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that Progress ShareFile Storage Zones Controller and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-20, CWE-22, CWE-73