Privilege Escalation via Mark-of-the-Web Bypass in ZPAQFRANZ

Publication date: 2026-07-22

Last updated on: 2026-07-24

Assigner: MITRE

Description

An issue in Franco Corbelli ZPAQFRANZ v.61.3 and before allows a remote attacker to escalate privileges and execute arbitrary code via a bypass of the Mark-of-the-Web protection mechanism

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-07-22

Last Modified

2026-07-24

Generated

2026-08-12

AI Q&A

2026-07-23

EPSS Evaluated

2026-08-10

NVD

CVE-2025-50327

Affected Vendors & Products

Vendor	Product	Version / Range
franco_corbelli	zpaqfranz	to 61.3 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-693	The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product.

Attack-Flow Graph

Executive Summary

This vulnerability is in Franco Corbelli ZPAQFRANZ software versions 61.3 and earlier. It allows a remote attacker to bypass the Mark-of-the-Web protection mechanism, which is designed to prevent untrusted files from executing with elevated privileges. By bypassing this, an attacker can escalate their privileges and execute arbitrary code on the affected system.

Impact Analysis

If you use ZPAQFRANZ v.61.3 or earlier, an attacker could exploit this to gain higher privileges on your system. This could allow them to install malware, steal data, or take control of your device without your knowledge. It primarily affects users who download and run files using this software.

Mitigation Strategies

Update ZPAQFRANZ to version 61.4 or later to address the Mark-of-the-Web bypass issue. Remove any untrusted files that may have been executed due to this vulnerability.

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