CVE-2020-12499

mediumpriority · track · 29EPSS 0.004 · 34 %ileDEEUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.40% (34th) EPSS
CVSS 4.4 · medium
Is it mine?
20 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · nvd · phoenix_contact_psirt

EPSS · scored 2026-10-27

In PHOENIX CONTACT PLCnext Engineer version 2020.3.1 and earlier an improper path sanitation vulnerability exists on import of project files.

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • FixedPLCnext Engineerphoenix_contact_psirt

    Phoenix Contact strongly recommends updating to the latest version PLCnext Enineer 2020.6, which fixes this vulnerability.

  • Fixedpilz_psirt

    Use the current Version 7.10 of the Software CodeMeter Runtime, available via the manufacturer's website. https://www.wibu.com/de/support/anwendersoftware/anwendersoftware.html Only use the Software CodeMeter Runtime as Client. The software tools named under affected products use the Software CodeMeter Runtime as Client in their default setting. Pilz also recommends using a local firewall to limit unwanted access to the network ser- vices of the device with Software CodeMeter Runtime installed.

  • MitigationPLCnext Engineerphoenix_contact_psirt

    We strongly recommend customers to exchange project files only using secure file exchange services. Project files should not be exchanged via unencrypted email. Users should avoid importing project files from unknown source and exchange or store project files together with a checksum to ensure their integrity.

02

cvss

Technical severity, 0–10. One row per scoring source.

9.8
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–critical · 4.4–9.8

v2.04.4mediumAV:L/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.4 · impact 6.4
v3.17.3highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.3 · impact 5.9
v3.18.2highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Hsecondary · ENISA EU
v3.18.2highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Hsecondary · info@cert.vde.comexploitability 1.5 · impact 6
v3.18.2highCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Hsecondary · Phoenix Contact PSIRT DE
v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · Pilz PSIRT DE
v3.16.7mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USprimaryCWE-22USCWE-805US
04

affected products (20)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • VDE-2020-025PHOENIX CONTACT: Improper path sanitation on import of project files in PLCnext Engineer2020-07-21csaf · phoenix_contact_psirtDE

    The build settings of a PLCnext Engineer project (.pcwex) can be manipulated in a way that can result in the execution of remote code. The attacker needs to get access to a PLCnext Engineer project to be able to manipulate files inside. Additionally, the files of the remote code need to be transferred to a location which can be accessed by the PC that runs PLCnext Engineer. When PLCnext Engineer runs a build process of the manipulated project the remote code can be executed.

  • VDE-2020-033Pilz: Multiple products prone to WIBU-SYSTEMS CodeMeter vulnerabilities2020-09-10csaf · pilz_psirtDE

    A number of Pilz software tools use the Software CodeMeter Runtime application from WIBU-SYSTEMS AG to manage licences. This application contains a number of vulnerabilities, which enable an attacker to change and falsify a licence file, prevent normal operation of Code- Meter (Denial-of-Service) and potentially execute arbitrary code.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdnvdphoenix_contact_psirtpilz_psirtNVDCVE.orgMITRE
published 2020-07-21modified 2026-06-17
09

references (5)

External citations — patches, advisories, analysis.

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