The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution (RCE) has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled.
Advisories

No advisories yet.

Fixes

Solution

MZ Automation recommends updating to the latest build of the libIEC61850 standard. Documentation can be found at https://github.com/mz-automation/libiec61850. https://github.com/mz-automation/libiec61850


Workaround

No workaround given by the vendor.

History

Fri, 24 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 24 Jul 2026 00:15:00 +0000

Type Values Removed Values Added
First Time appeared Mz-automation
Mz-automation libiec61850
Vendors & Products Mz-automation
Mz-automation libiec61850

Thu, 23 Jul 2026 21:45:00 +0000

Type Values Removed Values Added
Description The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution (RCE) has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled.
Title Stack-based Buffer Overflow in MZ Automation libIEC61850
Weaknesses CWE-122
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published:

Updated: 2026-07-24T13:42:05.960Z

Reserved: 2026-06-09T20:01:29.554Z

Link: CVE-2026-49035

cve-icon Vulnrichment

Updated: 2026-07-24T13:42:00.990Z

cve-icon NVD

Status : Deferred

Published: 2026-07-23T21:17:04.620

Modified: 2026-07-30T14:12:18.697

Link: CVE-2026-49035

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T21:00:12Z

Weaknesses