Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2021-20606 CVE-2021-20607 |
CWE-ID | CWE-125 CWE-191 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
GX Works2 Client/Desktop applications / Software for system administration MELSOFT Navigator Client/Desktop applications / Software for system administration EZSockdet Client/Desktop applications / Software for system administration |
Vendor | Mitsubishi Electric |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU59226
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20606
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and cause a denial of service condition on the system.
MitigationInstall update from vendor's website.
Vulnerable software versionsGX Works2: 1.606G
MELSOFT Navigator: All versions
EZSockdet: All versions
External linkshttp://jvn.jp/vu/JVNVU93817405/index.html
http://us-cert.cisa.gov/ics/advisories/icsa-21-350-05
http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-021_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.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU59227
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20607
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to integer underflow. A remote attacker can trick a victim to open a specially crafted file, trigger integer underflow and cause a denial of service condition on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsGX Works2: 1.606G
MELSOFT Navigator: All versions
EZSockdet: All versions
External linkshttp://jvn.jp/vu/JVNVU93817405/index.html
http://us-cert.cisa.gov/ics/advisories/icsa-21-350-05
http://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-021_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.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.