6.5

CVE-2021-45117

Exploit
The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Opcfoundation ≫ Ua-nodeset Version < 1.05.01
Siemens ≫ Simatic Net Pc Version14 Update-
Siemens ≫ Simatic Net Pc Version15 Update-
Siemens ≫ Simatic Net Pc Version16 Update-
Siemens ≫ Simatic Net Pc Version17 Update-
Siemens ≫ Sitop Manager Version-
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.4% 0.688
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvd@nist.gov 4.3 8.6 2.9
AV:N/AC:M/Au:N/C:N/I:N/A:P
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf
Patch
Third Party Advisory
https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2021-45117.pdf
Patch
Vendor Advisory
https://www.youtube.com/watch?v=qv-RBdCaV4k
Third Party Advisory
Exploit