CVE-2021-20607
Mitsubishi Electric GX Works2/MELSOFT Navigator/EZSocket Integer Underflow Denial of Service
Description
Integer Underflow vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior, Mitsubishi Electric MELSOFT Navigator versions 2.84N and prior and Mitsubishi Electric EZSocket versions 5.4 and prior allows an attacker to cause a DoS condition in the software by getting a user to open malicious project file specially crafted by an attacker.
INFO
Published Date :
Dec. 17, 2021, 5:15 p.m.
Last Modified :
Feb. 2, 2023, 7:58 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2021-20607
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-20607.
| URL | Resource |
|---|---|
| https://jvn.jp/vu/JVNVU93817405/index.html | Patch Third Party Advisory |
| https://us-cert.cisa.gov/ics/advisories/icsa-21-350-05 | Third Party Advisory US Government Resource |
| https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-021_en.pdf | Patch Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-20607 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20607 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:mitsubishielectric:ezsocket:*:*:*:*:*:*:*:* *cpe:2.3:a:mitsubishielectric:gx_works2:*:*:*:*:*:*:*:* versions up to (including) 1.606g *cpe:2.3:a:mitsubishielectric:melsoft_navigator:*:*:*:*:*:*:*:* OR *cpe:2.3:a:mitsubishielectric:ezsocket:*:*:*:*:*:*:*:* versions up to (including) 5.4 *cpe:2.3:a:mitsubishielectric:gx_works2:*:*:*:*:*:*:*:* versions up to (including) 1.606g *cpe:2.3:a:mitsubishielectric:melsoft_navigator:*:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 29, 2022
Action Type Old Value New Value Changed Description Integer Underflow vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior, Mitsubishi Electric MELSOFT Navigator versions 2.84N and prior and Mitsubishi Electric EZSocket all versions allows an attacker to cause a DoS condition in the software by getting a user to open malicious project file specially crafted by an attacker. Integer Underflow vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior, Mitsubishi Electric MELSOFT Navigator versions 2.84N and prior and Mitsubishi Electric EZSocket versions 5.4 and prior allows an attacker to cause a DoS condition in the software by getting a user to open malicious project file specially crafted by an attacker. -
CVE Modified by [email protected]
Jul. 01, 2022
Action Type Old Value New Value Changed Description Integer Underflow vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior, MELSOFT Navigator all versions and EZSocket all versions allows an attacker to cause a DoS condition in the software by getting a user to open malicious project file specially crafted by an attacker. Integer Underflow vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior, Mitsubishi Electric MELSOFT Navigator versions 2.84N and prior and Mitsubishi Electric EZSocket all versions allows an attacker to cause a DoS condition in the software by getting a user to open malicious project file specially crafted by an attacker. -
Initial Analysis by [email protected]
Dec. 27, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Changed Reference Type https://jvn.jp/vu/JVNVU93817405/index.html No Types Assigned https://jvn.jp/vu/JVNVU93817405/index.html Patch, Third Party Advisory Changed Reference Type https://us-cert.cisa.gov/ics/advisories/icsa-21-350-05 No Types Assigned https://us-cert.cisa.gov/ics/advisories/icsa-21-350-05 Third Party Advisory, US Government Resource Changed Reference Type https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-021_en.pdf No Types Assigned https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-021_en.pdf Patch, Vendor Advisory Added CWE NIST CWE-191 Added CPE Configuration OR *cpe:2.3:a:mitsubishielectric:ezsocket:*:*:*:*:*:*:*:* *cpe:2.3:a:mitsubishielectric:gx_works2:*:*:*:*:*:*:*:* versions up to (including) 1.606g *cpe:2.3:a:mitsubishielectric:melsoft_navigator:*:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20607 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-20607
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.09 }} 0.00%
score
0.38584
percentile