FATEK WinProladder Versions 3.30_24518 and prior are vulnerable to a stack-based buffer overflow while processing project files, which may allow an attacker to execute arbitrary code.
Published 2021-12-28 19:15:08
Updated 2022-04-01 16:38:42
Source ICS-CERT
View at NVD,   CVE.org
Vulnerability category: OverflowMemory CorruptionExecute code

Exploit prediction scoring system (EPSS) score for CVE-2021-43556

0.27%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-43556

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-2021-43556

  • A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
    Assigned by: ics-cert@hq.dhs.gov (Secondary)
  • The product writes data past the end, or before the beginning, of the intended buffer.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-43556

Products affected by CVE-2021-43556

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