Vulnerability · Published May 21, 2026 · Assigned by CERTVDE
CVE-2026-0393CODESYS Visualization - Insufficiently Protected Credentials
Medium 6.9
In plain English
A medium-severity security flaw in Visualization from CODESYS. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 4.0)6.9Medium
Exploit odds (30 days)0.2%top 84.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The affected product may expose credentials remotely between low privileged visualization users during concurrent login operations due to insufficient isolation of authentication data. The vulnerability affects only login operations within an active visualization session.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| CODESYS | Visualization | 1.0.0.0 – before 4.10.0.0 |
Weakness: CWE-522 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N