CVE-2025-3449 — MEDIUM (4.2)

Vulnerability 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.

CVSS Score

4.2

MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE

Related Weaknesses (CWE)

CWE-340

References

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

FAQ

What is CVE-2025-3449?

CVE-2025-3449 is a vulnerability with a CVSS score of 4.2 (MEDIUM). 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 alr...

How severe is CVE-2025-3449?

CVE-2025-3449 has been rated MEDIUM with a CVSS base score of 4.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-3449?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.