CVE-2021-45117

The OPC autogenerated ANSI C stack stubs (in the NodeSets) do not handle all error cases. This can lead to a NULL pointer dereference.

CVSS v3.1 NVD

6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v2.0 NVD

4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS

1.42% chance of exploitation in the next 30 days, 72nd percentile

Published

2022-03-21

Updated

2024-08-04

Proof-of-concept exploits (1)

• https://www.youtube.com/watch?v=qv-RBdCaV4k

Security advisories

• https://files.opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%…
• https://cert-portal.siemens.com/productcert/pdf/ssa-285795.pdf

References

• CVE Record
• NVD entry