Vulnerability Details : CVE-2021-38434
FATEK Automation WinProladder versions 3.30 and prior lacks proper validation of user-supplied data when parsing project files, which could result in an unexpected sign extension. An attacker could leverage this vulnerability to execute arbitrary code.
Vulnerability category: Execute code
Products affected by CVE-2021-38434
- cpe:2.3:a:fatek:winproladder:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-38434
0.30%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 51 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-38434
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
ICS-CERT | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-38434
-
The product performs an operation on a number that causes it to be sign extended when it is transformed into a larger data type. When the original number is negative, this can produce unexpected values that lead to resultant weaknesses.Assigned by: ics-cert@hq.dhs.gov (Primary)
References for CVE-2021-38434
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-280-06
FATEK Automation WinProladder | CISAThird Party Advisory;US Government Resource
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