Vulnerability Details : 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. Manipulated PC Worx projects could lead to a remote code execution due to insufficient input data validation.
Vulnerability category: Memory CorruptionExecute code
Products affected by CVE-2020-12497
- cpe:2.3:a:phoenixcontact:pc_worx_express:*:*:*:*:*:*:*:*
- cpe:2.3:a:phoenixcontact:pc_worx:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-12497
2.95%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 91 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-12497
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
CERT VDE | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2020-12497
-
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).Assigned by: info@cert.vde.com (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-12497
-
https://www.zerodayinitiative.com/advisories/ZDI-20-825/
ZDI-20-825 | Zero Day InitiativeThird Party Advisory;VDB Entry
-
https://cert.vde.com/de-de/advisories/vde-2020-023
PHOENIX CONTACT: Two Vulnerabilities in Automation Worx Suite — German (Germany)Vendor Advisory
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https://www.zerodayinitiative.com/advisories/ZDI-21-398/
ZDI-21-398 | Zero Day InitiativeThird Party Advisory;VDB Entry
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