CVE-2025-3449

LOW EPSS 7.7%

Published Oct 7, 20258mo ago · Modified Jun 17, 20261w ago

2.3 CVSS 4.0

Low

Published Oct 7, 2025 8mo ago

Last Modified Jun 17, 2026 1w ago

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 Details

Base Score

2.3

Exploitability

—

Impact

—

Vector string

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector Network

Attack Complexity Low

Privileges Required None

User Interaction P

Scope X

Threat Intelligence

EPSS Exploit Probability

7.7% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-340

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.