B&R Industrial Automation Automation Runtime up to 6.4/R4.92 ANSL-Server allocation of resources

Summaryinfo

A vulnerability identified as critical has been detected in B&R Industrial Automation Automation Runtime up to 6.4/R4.92. Affected is an unknown function of the component ANSL-Server. This manipulation causes allocation of resources. This vulnerability is handled as CVE-2025-11044. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in B&R Industrial Automation Automation Runtime up to 6.4/R4.92. It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component ANSL-Server. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. The summary by CVE is:

An Allocation of Resources Without Limits or Throttling vulnerability in the ANSL-Server component of B&R Automation Runtime versions prior to 6.5 and prior to R4.93 could be exploited by an unauthenti-cated attacker on the network to win a race condition, resulting in permanent denial-of-service (DoS) conditions on affected devices.

It is possible to read the advisory at br-automation.com. This vulnerability is known as CVE-2025-11044 since 09/26/2025. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 6.5 or R4.93 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-3214). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Automation Software

Vendor

• B&R Industrial Automation

Name

• Automation Runtime

Version

• 6.0
• 6.1
• 6.2
• 6.3
• 6.4
• R4.0
• R4.1
• R4.2
• R4.3
• R4.4
• R4.5
• R4.6
• R4.7
• R4.8
• R4.9
• R4.10
• R4.11
• R4.12
• R4.13
• R4.14
• R4.15
• R4.16
• R4.17
• R4.18
• R4.19
• R4.20
• R4.21
• R4.22
• R4.23
• R4.24
• R4.25
• R4.26
• R4.27
• R4.28
• R4.29
• R4.30
• R4.31
• R4.32
• R4.33
• R4.34
• R4.35
• R4.36
• R4.37
• R4.38
• R4.39
• R4.40
• R4.41
• R4.42
• R4.43
• R4.44
• R4.45
• R4.46
• R4.47
• R4.48
• R4.49
• R4.50
• R4.51
• R4.52
• R4.53
• R4.54
• R4.55
• R4.56
• R4.57
• R4.58
• R4.59
• R4.60
• R4.61
• R4.62
• R4.63
• R4.64
• R4.65
• R4.66
• R4.67
• R4.68
• R4.69
• R4.70
• R4.71
• R4.72
• R4.73
• R4.74
• R4.75
• R4.76
• R4.77
• R4.78
• R4.79
• R4.80
• R4.81
• R4.82
• R4.83
• R4.84
• R4.85
• R4.86
• R4.87
• R4.88
• R4.89
• R4.90
• R4.91
• R4.92

CPE 2.3info

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Entryinfo

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