CVE-2026-59781
CVE-2026-59781 · Improper validation of custom installation directories on Windows could allow installation into locations with unsafe permissions, increasing the risk of DLL sideloading.
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 5.4 · Medium · EPSS 0.1% · Fix available
- Published
- Updated
Stack: system · applications
Affected products and versions
zabbix
- Versions
- ≥ 7.4.0, ≤ 7.4.12: Affected; ≥ 7.4.13: Not affected (git)
- ≥ 7.0.0, ≤ 7.0.28: Affected; ≥ 7.0.29: Not affected (git)
- ≥ 6.0.0, ≤ 6.0.47: Affected; ≥ 6.0.48: Not affected (git)
Update to 6.0.48; Update to 7.0.29; Update to 7.4.13
zabbix Ubuntu:Pro:14.04:LTS
- Versions
- 1:2.0.6+dfsg-1ubuntu2
- 1:2.2.0+dfsg-1ubuntu1
- 1:2.2.0+dfsg-6ubuntu1
- 1:2.2.1+dfsg-1ubuntu3
- 1:2.2.2+dfsg-1ubuntu1
- 1:2.2.2+dfsg-1ubuntu1+esm1
- 1:2.2.2+dfsg-1ubuntu1+esm3
- 1:2.2.2+dfsg-1ubuntu1+esm4
- 1:2.2.2+dfsg-1ubuntu1+esm5
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:Pro:16.04:LTS
- Versions
- 1:2.4.6+dfsg-1
- 1:2.4.7+dfsg-1
- 1:2.4.7+dfsg-2
- 1:2.4.7+dfsg-2ubuntu2
- 1:2.4.7+dfsg-2ubuntu2.1
- 1:2.4.7+dfsg-2ubuntu2.1+esm1
- 1:2.4.7+dfsg-2ubuntu2.1+esm2
- 1:2.4.7+dfsg-2ubuntu2.1+esm3
- 1:2.4.7+dfsg-2ubuntu2.1+esm4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:Pro:18.04:LTS
- Versions
- 1:3.0.7+dfsg-3
- 1:3.0.12+dfsg-1
- 1:3.0.12+dfsg-1ubuntu0.1~esm1
- 1:3.0.12+dfsg-1ubuntu0.1~esm2
- 1:3.0.12+dfsg-1ubuntu0.1~esm3
- 1:3.0.12+dfsg-1ubuntu0.1~esm4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:Pro:20.04:LTS
- Versions
- 1:4.0.4+dfsg-1build2
- 1:4.0.4+dfsg-1build3
- 1:4.0.11+dfsg-1
- 1:4.0.14+dfsg-1
- 1:4.0.15+dfsg-1
- 1:4.0.16+dfsg-1
- 1:4.0.16+dfsg-1build1
- 1:4.0.17+dfsg-1
- 1:4.0.17+dfsg-1ubuntu0.1~esm1
- 1:4.0.17+dfsg-1ubuntu0.1~esm2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:Pro:22.04:LTS
- Versions
- 1:5.0.8+dfsg-1build1
- 1:5.0.14+dfsg-1
- 1:5.0.17+dfsg-1
- 1:5.0.17+dfsg-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:26.10
- Versions
- 1:7.0.22+dfsg-1
- 1:7.0.22+dfsg-1.1
- 1:7.0.22+dfsg-1.1build1
- 1:7.0.22+dfsg-1.1build2
- 1:7.0.27+dfsg-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
zabbix Ubuntu:26.04:LTS
- Versions
- 1:7.0.10+dfsg-2build1
- 1:7.0.22+dfsg-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published