Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-20589 |
CWE-ID | CWE-119 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
GOT2000 GT27 model Server applications / SCADA systems GOT2000 GT25 model Server applications / SCADA systems GOT2000 GT23 model Server applications / SCADA systems GOT2000 GT21 model Server applications / SCADA systems GOT SIMPLE GS21 model Server applications / SCADA systems GT SoftGOT2000 Version1 Server applications / SCADA systems LE7-40GU-L Hardware solutions / Firmware |
Vendor | Mitsubishi Electric |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU53140
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-2021-20589
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the MODBUS/TCP server communication function. A remote attacker can trigger memory corruption and cause a denial of service condition on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsGOT2000 GT27 model: 01.19.000 - 01.38.000
GOT2000 GT25 model: 01.19.000 - 01.38.000
GOT2000 GT23 model: 01.19.000 - 01.38.000
GOT2000 GT21 model: 01.21.000 - 01.39.000
GOT SIMPLE GS21 model: 01.21.000 - 01.39.000
GT SoftGOT2000 Version1: 1.170C - 1.250L
LE7-40GU-L: 1.00
External linkshttp://ics-cert.us-cert.gov/advisories/icsa-21-131-02
http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-002_en.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.