Vulnerability Details : CVE-2021-20608
Improper Handling of Length Parameter Inconsistency vulnerability in Mitsubishi Electric GX Works2 versions 1.606G and prior allows a remote unauthenticated attacker to cause a DoS condition in GX Works2 by getting GX Works2 to read a tampered program file from a Mitsubishi Electric PLC by sending malicious crafted packets to tamper with the program file.
Vulnerability category: Denial of service
Products affected by CVE-2021-20608
- cpe:2.3:a:mitsubishielectric:gx_works2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20608
0.26%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 46 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20608
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
References for CVE-2021-20608
-
https://www.mitsubishielectric.com/en/psirt/vulnerability/pdf/2021-020_en.pdf
Vendor Advisory
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-350-04
Mitsubishi Electric GX Works2 | CISAThird Party Advisory;US Government Resource
-
https://jvn.jp/vu/JVNVU93019896/index.html
JVNVU#93019896: 三菱電機製GX Works2における長さパラメータの不整合時の不適切な取り扱いに関する脆弱性Third Party Advisory
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