CVE-2026-63033

MEDIUM CVSS 4.0: 6.9 EPSS 0.26%
Updated Jul 31, 2026
Mz Automation
Parameter Value
CVSS 6.9 (MEDIUM)
Type CWE-125 (Out-of-bounds Read)
Vendor Mz Automation
Public PoC No

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.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
None
No data modification
Availability
Low
Partial disruption

CVSS Vector v4.0

Weakness Type (CWE)

Vulnerable Products

mz automation:lib60870