CVE WatchAug 19, 2026

CVE-2026-59781

When Zabbix Agent was installed on Windows into a custom installation directory, the installer did not verify whether the selected directory

CVSS

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No CVSS

EPSS

0.1%

KEV

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Exploit Today

0-100

Published: Aug 18, 2026 · Last modified: Aug 19, 2026 · CWE-427

EPSS · 30d

Not enough EPSS history yet.

Technical description

When Zabbix Agent was installed on Windows into a custom installation directory, the installer did not verify whether the selected directory had secure access permissions. If the target directory allowed unauthorized users to modify its contents, an attacker could place a malicious DLL that could later be loaded by the application, resulting in DLL sideloading. The installer has been hardened to detect potentially unsafe installation directories and now requires explicit user confirmation before proceeding with installation in such locations. This reduces the risk of accidental installation into directories with inappropriate permissions while preserving compatibility with existing deployment scenarios.

Official references

support.zabbix.comhttps://support.zabbix.com/browse/ZBX-28077

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