#VU55382 Missing Synchronization

Published: 2021-07-28

Vulnerability identifier: #VU55382

Vulnerability risk: Medium

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20592


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
GOT2000 GT27 model
Server applications / SCADA systems
GOT2000 GT25 model
Server applications / SCADA systems
GOT2000 GT23 model
Server applications / SCADA systems
GT SoftGOT2000
Server applications / SCADA systems

Vendor: Mitsubishi Electric


The vulnerability allows a remote attacker to perform a denial of servise (DoS) attack.

The vulnerability exists due to the affected software utilizes a shared resource in a concurrent manner but does not attempt to synchronize access to the resource. A remote attacker can cause a denial of service condition on the target system.

Install updates from vendor's website.

Vulnerable software versions

GOT2000 GT27 model: 01.19.000 - 01.39.010

GOT2000 GT25 model: 01.19.000 - 01.39.010

GOT2000 GT23 model: 01.19.000 - 01.39.010

GT SoftGOT2000: 1.170C - 1.256S


External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability