Vulnerability Details : CVE-2021-20607
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.
Vulnerability category: Denial of service
Products affected by CVE-2021-20607
- cpe:2.3:a:mitsubishielectric:ezsocket:*:*:*:*:*:*:*:*
- cpe:2.3:a:mitsubishielectric:gx_works2:*:*:*:*:*:*:*:*
- cpe:2.3:a:mitsubishielectric:melsoft_navigator:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20607
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 32 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20607
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-20607
-
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20607
-
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-021_en.pdf
Patch;Vendor Advisory
-
https://jvn.jp/vu/JVNVU93817405/index.html
JVNVU#93817405: 三菱電機製FAエンジニアリングソフトウェア製品における複数の脆弱性Patch;Third Party Advisory
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-350-05
Mitsubishi Electric FA Engineering Software | CISAThird Party Advisory;US Government Resource
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