CVE-2025-53476
mediumpriority · track · 0EPSS 0.005 · 40 %ileEUUSEPSS · scored 2026-10-26
A denial of service vulnerability exists in the ModbusTCP server functionality of OpenPLC _v3 a931181e8b81e36fadf7b74d5cba99b73c3f6d58. A specially crafted series of network connections can lead to the server not processing subsequent Modbus requests. An attacker can open a series of TCP connections to trigger this vulnerability.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2025-53476cnnvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223cnnvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223enisa_euvd
- https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223nvd
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2025-2223nvd
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