CVE-2026-49035 HIGH

CVE-2026-49035: Stack-based Buffer Overflow in MZ Automation libIEC61850

Vendor Mz Automation
Product libIEC61850
Weakness CWE-122
Published July 23, 2026
Last update July 24, 2026
View on NVD All CVEs

CVSS base score

8.1/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

The affected product is vulnerable to a heap-based buffer overflow via a crafted MMS Initiate request. Remote code execution (RCE) has been demonstrated when ASLR is disabled; memory corruption or denial of service may occur in configurations where ASLR is enabled.

Key dates

02Disclosure timeline

July 23, 2026 CVE published
July 24, 2026 Record updated