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CVE-2021-26829

CVE

Threat entity extracted from intelligence sources

Frequency
6
occurrences
First Seen
November 30, 2025
Last Seen
December 2, 2025
API
Exploited in Wild
Ransomware Use
Public Exploits
Attack Vector

Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

CISA has added CVE-2021-26829, an old vulnerability in OpenPLC ScadaBR, to its Known Exploited Vulnerabilities catalog following a hacktivist attack targeting industrial control systems (ICS). This inclusion indicates that the vulnerability is actively being exploited, affecting organizations using...

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added the OpenPLC ScadaBR vulnerability, tracked as CVE-2021-26829, to its Known Exploited Vulnerabilities catalog after confirming active exploitation. This vulnerability affects versions 0.9.1 on Linux and 1.12.4 on Windows, allo...

The US Cybersecurity and Infrastructure Security Agency (CISA) has included a four-year-old vulnerability in ScadaBR, identified as CVE-2021-26829, in its Known Exploited Vulnerabilities (KEV) catalogue. This vulnerability has been reported to be exploited by the cyber security firm Forescout, with...

CISA has added CVE-2021-26829 to its Known Exploited Vulnerabilities catalog due to active exploitation of the OpenPLC ScadaBR vulnerability. This vulnerability affects systems using OpenPLC ScadaBR, posing risks to operational technology environments.

Public Exploits

Checking GitHub for proof-of-concept code…