Vulnerability · Published Dec 30, 2022 · Assigned by VulDB

CVE-2022-4856Modbus Tools Modbus Slave mbs File mbslave.exe buffer overflow

Medium 6.3

In plain English

A medium-severity buffer overflow in Modbus Slave from Modbus Tools. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium

Exploit odds (30 days)0.6%top 49.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Modbus Tools	Modbus Slave	7.5.07.5.1

Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

References

https://vuldb.com/?id.217021 vdb-entry
https://vuldb.com/?ctiid.217021 signature, permissions-required
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 related
https://github.com/Durian1546/vul/blob/main/webray.com.cn/Modbus%20Slave/poc/poc.mbs exploit