Description
PLCopen XML file parsing in Phoenix Contact PC Worx and PC Worx Express version 1.87 and earlier can lead to a stack-based overflow. Manipulated PC Worx projects could lead to a remote code execution due to insufficient input data validation.
References (3)
Core 3
Core References
Vendor Advisory x_refsource_confirm
https://cert.vde.com/de-de/advisories/vde-2020-023
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-20-825/
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-398/
Scores
CVSS v3
7.8
EPSS
0.1467
EPSS Percentile
96.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Details
CWE
CWE-121
CWE-787
Status
published
Products (2)
phoenixcontact/pc_worx
< 1.87
phoenixcontact/pc_worx_express
< 1.87
Published
Jul 01, 2020
Tracked Since
Feb 18, 2026