Medium 6.5Published Jul 30, 2026

CVE-2026-61893MZ Automation lib60870 Out-of-bounds Read

Updated under an hour ago (Oct 27, 2026, 8:00 PM ET)

Does this affect you?

It affects MZ Automation lib60870. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for MZ Automation lib60870

Exploited in the last 30 days

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.

CVSS: 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Weakness (CWE): CWE-125
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: icscert
NVD analysis: Deferred
Record last updated: Jul 31, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

MZ Automation lib60870 mz_automation:lib60870 (from the name)	2.4.0; 2.4.1 not affected	CNA record

References

References

https://github.com/mz-automation/lib60870/security/advisories/GHSA-g3w7-x5rx-83xm
https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-11
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-11.json

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.