High severity · published Jul 1, 2020
CVE-2020-12497
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
7.8
CVSS
14.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)14.7% · higher than 97% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PW
PC Worx · Phoenixcontact
before 1.87 · source: NVD
PW
PC Worx Express · Phoenixcontact
through 1.87 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-12497
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-12497
Vendor Advisory
https://cert.vde.com/de-de/advisories/vde-2020-023
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-20-825/
Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-398/
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