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.
Published: 2025-10-07
Score: 2.3 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 08 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
First Time appeared Br-automation
Br-automation automation Runtime
Vendors & Products Br-automation
Br-automation automation Runtime

Wed, 08 Oct 2025 13:30:00 +0000

Type Values Removed Values Added
Description Generation of Predictable Numbers or Identifiers vulnerability in B&R Industrial Automation Automation Runtime.This issue affects Automation Runtime: from 6.0 before 6.4. 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.

Tue, 07 Oct 2025 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 07 Oct 2025 18:30:00 +0000

Type Values Removed Values Added
Description Generation of Predictable Numbers or Identifiers vulnerability in B&R Industrial Automation Automation Runtime.This issue affects Automation Runtime: from 6.0 before 6.4.
Title Weak Session Token used in Automation Runtime SDM
Weaknesses CWE-340
References
Metrics cvssV3_1

{'score': 4.2, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 2.3, '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'}

Subscriptions

Br-automation Automation Runtime
cve-icon MITRE

Status: PUBLISHED

Assigner: ABB

Published:

Updated: 2025-10-08T13:15:41.649Z

Reserved: 2025-04-08T14:10:00.516Z

Link: CVE-2025-3449

cve-icon Vulnrichment

Updated: 2025-10-07T18:48:18.807Z

cve-icon NVD

Status : Deferred

Published: 2025-10-07T19:15:36.620

Modified: 2026-04-15T00:35:42.020

Link: CVE-2025-3449

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-08T13:35:30Z

Weaknesses