THREAT OPS › Threat News › MZ Automation GmbH libiec61850
MZ Automation GmbH libiec61850
<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-10.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Successful exploitation of these vulnerabilities could allow an attacker to cause a denial-of-service condition on the device.</strong></p> <p>The following versions of MZ Automation GmbH libiec61850 are affected:</p> <ul> <li>libiec6
MITRE ATT&CK techniques
Indicators of compromise
- CVE-2026-66720cve
- CVE-2026-66369cve
- CVE-2026-63550cve
- CVE-2026-65421cve
- CVE-2026-66364cve
- CVE-2026-66349cve
- CVE-2026-56758cve
- CVE-2026-66360cve
- https://www.cve.org/CVERecord?id=CVE-2026-66720url
- 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-2026-66369url
- https://www.cve.org/CVERecord?id=CVE-2026-63550url
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:L/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:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nurl
- https://www.cve.org/CVERecord?id=CVE-2026-65421url
- https://www.cve.org/CVERecord?id=CVE-2026-66364url
- https://www.cve.org/CVERecord?id=CVE-2026-66349url
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:Nurl
- https://www.cve.org/CVERecord?id=CVE-2026-56758url
- https://www.cve.org/CVERecord?id=CVE-2026-66360url
- 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
Original source: https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-10
Same event, other sources
- MZ Automation GmbH libiec61850cisa_advisories · 2026-07-30