CVE-2025-3450
criticalpriority · track · 0EPSS 0.003 · 20 %ileCHEUUSEPSS · scored 2026-10-26
An Improper Resource Locking vulnerability in the SDM component of B&R Automation Runtime versions before 6.3 and before Q4.93 may allow an unauthenticated network-based attacker to delete data causing denial of service conditions.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedAutomation Runtimeabb_psirt
The problem is corrected in Automation Runtime versions 6.3 and Q4.93. The System Diagnostic Manager (SDM) is disabled by default in Automation Runtime 6 and is not in-tended be enabled on active systems located outside properly secured production networks or in facilities lacking adequate physical and logical access controls to prevent any form of unauthorized interaction. For customers who use SDM on their systems, B&R recommends applying the update at the earliest convenience. The process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual.
- FixedAutomation Runtimecisa_csaf_ot
The problem is corrected in Automation Runtime versions 6.3 and Q4.93. The System Diagnostic Manager (SDM) is disabled by default in Automation Runtime 6 and is not in-tended be enabled on active systems located outside properly secured production networks or in facilities lacking adequate physical and logical access controls to prevent any form of unauthorized interaction. For customers who use SDM on their systems, B&R recommends applying the update at the earliest convenience. The process to install updates is described in the user manual. The step to identify the installed product version is described in the user manual.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.9–10
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (12)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- SA25P002B&R Automation Runtime DoS Vulnerability in System Diagnostics Manager (SDM)2025-10-07csaf · abb_psirtCH
An update is available that resolves a vulnerability identified by B&Rs internal security analysis in the product versions listed as affected in this advisory. An attacker who successfully exploited this vulnerability could cause the product to stop.
- ICSA-26-146-04ABB B&R Automation Runtime DoS Vulnerability in System Diagnostics Manager (SDM)2025-10-07icsa · cisa_csaf_otUS
An update is available that resolves a vulnerability identified by B&Rs internal security analysis in the product versions listed as affected in this advisory. An attacker who successfully exploited this vulnerability could cause the product to stop.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (3)
External citations — patches, advisories, analysis.
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