CVE-2025-40833 HIGH

CVE-2025-40833

Vendor Siemens
Product IE/PB LINK HA
Weakness CWE-476
Published May 12, 2026
Last update May 12, 2026

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests. This could allow an attacker to cause denial of service condition. A manual restart is required to recover the system.

Key dates

02Disclosure timeline

May 12, 2026 CVE published
May 12, 2026 Record updated