THREAT OPS › Threat News › Toptech Systems RCU II+ and Multiload II+
Toptech Systems RCU II+ and Multiload II+
<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-03.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Successful exploitation of this vulnerability could allow an attacker to gain full system control and misuse it to access or manipulate connected networks and resources.</strong></p> <p>The following versions of Toptech Systems RCU II
MITRE ATT&CK techniques
- VulnerabilitiesT1588.006
Indicators of compromise
- CVE-2026-12562cve
- https://www.cve.org/CVERecord?id=CVE-2026-12562url
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hurl
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nurl
- security@toptech.comemail
- docs.toptech.comdomain
Original source: https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-03
Same event, other sources
- Toptech Systems RCU II+ and Multiload II+cisa_ics · 2026-07-30