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CVE-2022-4856 Details

Description

A vulnerability has been found in Modbus Tools Modbus Slave up to 7.5.1 and classified as critical. Affected by this vulnerability is an unknown functionality of the file mbslave.exe of the component mbs File Handler. The manipulation leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-217021 was assigned to this vulnerability.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CNA: [email protected]CVSS-B:6.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/Durian1546/vul/blob/main/webray.com.cn/Modbus%20Slave/Modbus%20Slave%20(version%207.5.1%20and%20earlier)%20mbs%20file%20has%20a%20buffer%20overflow%20vulnerability.md	CVE	ExploitPatchThird Party Advisory
https://github.com/Durian1546/vul/blob/main/webray.com.cn/Modbus%20Slave/poc/poc.mbs	CVE	Third Party Advisory
https://vuldb.com/?ctiid.217021	CVE	Third Party Advisory
https://vuldb.com/?id.217021	CVE	Third Party Advisory
https://github.com/Durian1546/vul/blob/main/webray.com.cn/Modbus%20Slave/Modbus%20Slave%20(version%207.5.1%20and%20earlier)%20mbs%20file%20has%20a%20buffer%20overflow%20vulnerability.md	[email protected]	ExploitPatchThird Party Advisory
https://github.com/Durian1546/vul/blob/main/webray.com.cn/Modbus%20Slave/poc/poc.mbs	[email protected]	Third Party Advisory
https://vuldb.com/?ctiid.217021	[email protected]	Third Party Advisory
https://vuldb.com/?id.217021	[email protected]	Third Party Advisory

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-120	Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')	[email protected]

Affected Products

Product	Versions
modbustools modbus slave	<= 7.5.1
CPE cpe:2.3:a:modbustools:modbus_slave:::::::: Remediation No remediation found in references.

Change History

9 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 17, 2024	CVE Modified	[email protected]
May 14, 2024	CVE Modified	[email protected]
Apr 11, 2024	CVE Modified	[email protected]
Mar 21, 2024	CVE Modified	[email protected]
Feb 29, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Jan 9, 2023	Initial Analysis	[email protected]