CVE-2025-53476

Oct. 8, 2025, 7:38 p.m.

5.3
Medium

Description

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.

Product(s) Impacted

Vendor Product Versions
Openplc
  • Openplc
  • *

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-775
Missing Release of File Descriptor or Handle after Effective Lifetime
The product does not release a file descriptor or handle after its effective lifetime has ended, i.e., after the file descriptor/handle is no longer needed.

*CPE(s)

Affected systems and software identified for this CVE.

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
a openplc openplc / / / / / / / /

References

https://talosintelligence.com/vulnerability_reports/TALOS-2025-2223

Tags

talos-cna@cisco.com
CWE-775
2025-10-07
CVE-2025-53476

CVSS Score

5.3 / 10

CVSS Data - 3.1

  • Attack Vector: NETWORK
  • Attack Complexity: LOW
  • Privileges Required: NONE
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: LOW

    • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

    View Vector String

Timeline

Published: Oct. 7, 2025, 2:15 p.m.
Last Modified: Oct. 8, 2025, 7:38 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

talos-cna@cisco.com

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.