Vulnerability Details : CVE-2021-25674
A vulnerability has been identified in SIMATIC S7-PLCSIM V5.4 (All versions). An attacker with local access to the system could cause a Denial-of-Service condition in the application when it is used to open a specially crafted file. As a consequence, a NULL pointer deference condition could cause the application to terminate unexpectedly and must be restarted to restore the service.
Vulnerability category: Denial of service
Products affected by CVE-2021-25674
- cpe:2.3:a:siemens:simatic_s7-plcsim:5.4:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-25674
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-25674
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-25674
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: productcert@siemens.com (Primary)
References for CVE-2021-25674
-
https://cert-portal.siemens.com/productcert/pdf/ssa-256092.pdf
Vendor Advisory
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