Medium severity6.5NVD Advisory· Published Jul 30, 2026
MZ Automation lib60870
CVE-2026-63033
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.
Affected products
1Patches
Vulnerability mechanics
News mentions
1- MZ Automation lib60870CISA ICS Advisories