VulnerabilityModified

CVE-2021-25674

A vulnerability has been identified in SIMATIC S7-PLCSIM V5.4 (All versions).

MEDIUM 5.5EPSS 0.22%

Does this matter?

Lower severity and a low EPSS score (0.22%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1: 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.22% probability · 13th percentile
CISA KEV: Not listed
Weakness: CWE-476
Affected: siemens/simatic s7-plcsim
Source: productcert@siemens.com

References

https://cert-portal.siemens.com/productcert/pdf/ssa-256092.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-256092.pdfVendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.