CVE-2025-3449 LOW

CVE-2025-3449: Weak Session Token used in Automation Runtime SDM

Vendor B&R Industrial Automation Gmbh
Product Automation Runtime
Weakness CWE-340
Published October 7, 2025
Last update October 8, 2025
View on NVD All CVEs

CVSS base score

2.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction —
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

A Generation of Predictable Numbers or Identifiers vulnerability in the SDM component of B&R Automation Runtime versions before 6.4 may allow an unauthenticated network-based attacker to take over already established sessions.

Key dates

02Disclosure timeline

October 7, 2025 CVE published
October 8, 2025 Record updated