CISA Known Exploited Vulnerability
This vulnerability is actively exploited in the wild and listed in the CISA Known Exploited Vulnerabilities catalog.
Remediation Deadline: Dec 19, 2025
High
CISA KEVCVE-2021-26829
OpenPLC—ScadaBR
OpenPLC ScadaBR contains a cross-site scripting vulnerability via system_settings.shtm.
Required Action
This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://github.com/SCADA-LTS/Scada-LTS/pull/3211 ; https://nvd.nist.gov/vuln/detail/CVE-2021-26829
Vulnerability Overview
- Severity
- High
- CISA KEV
- Yes
- Ransomware
- Unknown
- Published
- Nov 28, 2025
- KEV Added
- Nov 28, 2025
- Due Date
- Dec 19, 2025
- Related Articles
- 0
Vendor
OpenPLC
ScadaBR