Rockwell Automation ArmorStart LT Achilles EtherNet IP Step Limit Storm Test resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Rockwell Automation ArmorStart LT. Affected by this issue is some unknown functionality of the component Achilles EtherNet IP Step Limit Storm Test. This manipulation causes resource consumption. This vulnerability is tracked as CVE-2025-9279. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in Rockwell Automation ArmorStart LT (the affected version is unknown). Affected by this vulnerability is an unknown code of the component Achilles EtherNet IP Step Limit Storm Test. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

A security issue exists within ArmorStart® LT that can result in a denial-of-service condition. During execution of the Achilles EtherNet/IP Step Limit Storm tests, the device reboots unexpectedly, causing the Link State Monitor to go down for several seconds.

It is possible to read the advisory at rockwellautomation.com. This vulnerability is known as CVE-2025-9279 since 08/20/2025. The exploitation appears to be easy. 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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-3429). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.5
VulDB Temp Score: 7.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/20/2025 CVE reserved
01/20/2026 +153 days Advisory disclosed
01/20/2026 +0 days VulDB entry created
02/03/2026 +14 days VulDB entry last update

Sourcesinfo

Advisory: rockwellautomation.com
Status: Confirmed

CVE: CVE-2025-9279 (🔒)
GCVE (CVE): GCVE-0-2025-9279
GCVE (VulDB): GCVE-100-341947
EUVD: 🔒

Entryinfo

Created: 01/20/2026 15:24
Updated: 02/03/2026 05:01
Changes: 01/20/2026 15:24 (65), 02/03/2026 01:03 (1), 02/03/2026 05:01 (9)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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