CVE-2026-34184
HIGH EPSS 18.6%
Published Apr 9, 20262mo ago · Modified Jun 17, 20262w ago
8.8 CVSS 4.0
Published Apr 9, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
Hydrosystem Control System does not enforce authorization for some directories. This allows an unauthorized attacker to read all files in these directories and even execute some of them. Critically the attacker could run PHP scripts directly on the connected database.This issue was fixed in Hydrosystem Control System version 9.8.5
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
18.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-862 Missing Authorization Authorization
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| hydrosystem.poznan | control_system | * | <9.8.5 |
References 2
- cert.pl https://cert.pl/posts/2026/04/CVE-2026-4901/
- hydrosystem.poznan.pl https://www.hydrosystem.poznan.pl/
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.