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CVE-2026-61893 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

A crafted IEC 60870-5-104 I-frame with TypeID 104 (C_TS_NA_1) and an inflated object count causes TestCommand_getFromBuffer to read one byte past the end of the heap-allocated message buffer.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:8.2 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/mz-automation/lib60870/security/advisories/GHSA-g3w7-x5rx-83xm	CISA-ADP	AdvisoryExploitRemedyVendor
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-11.json	[email protected]	BundleRemedy
https://github.com/mz-automation/lib60870/security/advisories/GHSA-g3w7-x5rx-83xm	[email protected]	AdvisoryExploitRemedyVendor
https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-11	[email protected]	AdvisoryBundleRemedy

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	[email protected]

Affected Products

Product	Versions
MZ Automation lib60870	2.4.0 (semver)
CPE cpe:2.3:a:mz-automation:lib60870:::::::: Remediation Upgrade: 2.4.1moderate effort Mitigation:low effort Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as virtual private networks (VPNs).

Product

Versions

MZ Automation lib60870

2.4.0 (semver)

CPE

cpe:2.3:a:mz-automation:lib60870:*:*:*:*:*:*:*:*

Remediation

Upgrade: 2.4.1moderate effort
Mitigation:low effort
Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet. Locate control system networks and remote devices behind firewalls and isolate them from business networks. When remote access is required, use more secure methods, such as virtual private networks (VPNs).

Change History

2 change records found show changes

Date	Action	Recorded By
Jul 31, 2026	CVE Modified	CISA-ADP
Jul 30, 2026	New CVE Received	[email protected]