CVE-2023-46156 HIGH

CVE-2023-46156

Vendor Siemens
Product SIMATIC Drive Controller CPU 1504D TF
Weakness CWE-416
Published December 12, 2023
Last update February 25, 2026
View on NVD All CVEs

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/E:P/RL:O/RC:C

What the vulnerability does

01Description

Affected devices improperly handle specially crafted packets sent to port 102/tcp. This could allow an attacker to create a denial of service condition. A restart is needed to restore normal operations.

Key dates

02Disclosure timeline

December 12, 2023 CVE published
February 25, 2026 Record updated