CVE-2025-3449

Weak Session Token used in Automation Runtime SDM

State: Published
Severity: 2.3 Low
Published: Oct 7, 2025
Updated: Oct 8, 2025
Reserved: Apr 8, 2025

Description

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.

Scores

CVSS	Score	Vector	Source
4.0	2.3 Low	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	ABB
3.1	4.2 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N	ABB

Weaknesses

CWE-340 Generation of Predictable Numbers or Identifiers

Affected Products

Product	Versions
Automation RuntimeB&R Industrial Automation GmbH	6.0 to before 6.4Affected 4Affected

References

https://www.br-automation.com/fileadmin/SA25P003-178b6a20.pdf

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