8.5
HIGH CVSS 4.0
CVE-2026-9853
SYS600 Improper Access Control
Description

A vulnerability exists in SYS600 which allows any user authenticated to the operating system of the server hosting the application to read and modify application objects without being authenticated to the SYS600 system itself. Only the SYS600 system users should be permitted to view and modify application objects.

INFO

Published Date :

Sept. 3, 2026, 7:53 a.m.

Last Modified :

Sept. 3, 2026, 7:53 a.m.

Remotely Exploit :

No

Source :

Hitachi Energy
Affected Products

The following products are affected by CVE-2026-9853 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Hitachienergy microscada_x_sys600
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH e383dce4-0c27-4495-91c4-0db157728d17
Solution
Enforce authentication for all access to application objects.
  • Implement authentication checks for object access.
  • Verify user credentials before granting access.
  • Restrict object modification to authenticated users.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-9853 vulnerability anywhere in the article.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.