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MZ Automation libIEC61850
<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-204-06.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Successful exploitation of these vulnerabilities could allow an unauthenticated network-adjacent attacker to crash critical IEC 61850 services or execute arbitrary code, disrupting or compromising protection, visibility, and control f
MITRE ATT&CK techniques
Indicators of compromise
- CVE-2026-50039cve
- CVE-2026-49035cve
- CVE-2026-50103cve
- CVE-2026-50032cve
- https://www.cve.org/CVERecord?id=CVE-2026-50039url
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hurl
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nurl
- https://www.cve.org/CVERecord?id=CVE-2026-49035url
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Hurl
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:Nurl
- https://www.cve.org/CVERecord?id=CVE-2026-50103url
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hurl
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nurl
- https://www.cve.org/CVERecord?id=CVE-2026-50032url
Original source: https://www.cisa.gov/news-events/ics-advisories/icsa-26-204-06
Same event, other sources
- MZ Automation libIEC61850cisa_ics · 2026-07-23