CVE-2026-19472: CWE-770 Allocation of resources without limits or throttling in Rockwell Automation ArmorStart® LT
Description
A denial-of-service security issue exists within ArmorStart® LT. The security issue stems from improper handling of a crafted HTTP PUT request sent to the embedded web server. This can result in a loss of web server availability
CVSS v4.0
Score 8.7high
Affected software
Rockwell Automation
ArmorStart® LT
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-770) in ArmorStart® LT involves allocation of resources without limits or throttling when processing HTTP PUT requests. An attacker can send a specially crafted HTTP PUT request to the embedded web server, leading to denial of service by exhausting resources and causing loss of web server availability. The CVSS 4.0 base score is 8.7, indicating high severity. There is no indication of privilege or user interaction requirements, and no known exploits in the wild have been reported. The vendor has not published any patch or remediation details as of the publication date.
Potential Impact
Successful exploitation results in denial of service by making the embedded web server unavailable, impacting availability of the ArmorStart® LT device's web interface. This could disrupt normal operations relying on the web server functionality.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider restricting access to the embedded web server from untrusted networks to reduce exposure to crafted HTTP PUT requests.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Rockwell
- Date Reserved
- 2026-08-10T14:37:21.513Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a96caaeacd9273b49b6850e
Added to database: 09/01/2026, 12:53:02 UTC
Last enriched: 09/07/2026, 14:39:33 UTC
Last updated: 10/17/2026, 06:48:16 UTC
Views: 80
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