Vulnerability Details : CVE-2021-32943
The affected product is vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute arbitrary code on the WebAccess/SCADA (WebAccess/SCADA versions prior to 8.4.5, WebAccess/SCADA versions prior to 9.0.1).
Vulnerability category: OverflowMemory CorruptionExecute code
Products affected by CVE-2021-32943
- cpe:2.3:a:advantech:webaccess\/scada:*:*:*:*:*:*:*:*
- cpe:2.3:a:advantech:webaccess\/scada:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-32943
0.86%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 73 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-32943
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-32943
-
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-2021-32943
-
https://us-cert.cisa.gov/ics/advisories/icsa-21-217-04
Advantech WebAccess SCADA | CISAThird Party Advisory;US Government Resource
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