CVE-2026-63033

MEDIUM

MZ Automation lib60870 Out-of-bounds Read

Title source: cna
STIX 2.1

Description

A crafted IEC 60870-5-104 I-frame with a declared object count exceeding what fits in the ASDU body causes InformationObject_ParseObjectAddress to read one byte past the end of the heap-allocated message buffer.

Scores

CVSS v3 6.5
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Details

CWE
CWE-125
Status published
Products (2)
MZ Automation/lib60870 2.4.0
MZ Automation/lib60870 2.4.1
Published Jul 30, 2026
Tracked Since Jul 31, 2026