How severe is CVE-2019-12871?

CVE-2019-12871 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-12871 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12871?

CVE-2019-12871 affects Phoenixcontact Automationworx Software Suite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12871?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-12871 published?

CVE-2019-12871 was published on 2019-06-24 and last updated on 2026-06-17.

CVE-2019-12871

CVE-2019-12871 is a high-severity vulnerability in Phoenixcontact Automationworx Software Suite with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v2: 6.8
EPSS exploit prediction: 4% (88th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-416
Affected product: Phoenixcontact Automationworx Software Suite
Published: 2019-06-24
Last modified: 2026-06-17

Description

An issue was discovered in PHOENIX CONTACT PC Worx through 1.86, PC Worx Express through 1.86, and Config+ through 1.86. A manipulated PC Worx or Config+ project file could lead to a Use-After-Free and remote code execution. The attacker needs to get access to an original PC Worx or Config+ project file to be able to manipulate it. After manipulation, the attacker needs to exchange the original file with the manipulated one on the application programming workstation.

Frequently asked questions

What is CVE-2019-12871?: An issue was discovered in PHOENIX CONTACT PC Worx through 1.86, PC Worx Express through 1.86, and Config+ through 1.86. A manipulated PC Worx or Config+ project file could lead to a Use-After-Free and remote code execution. The attacker needs to get access to an original PC Worx or Config+ project file to be able to manipulate it. After manipulation, the attacker needs to exchange the original file with the manipulated one on the application programming workstation.
How severe is CVE-2019-12871?: CVE-2019-12871 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-12871 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (88th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12871?: CVE-2019-12871 affects Phoenixcontact Automationworx Software Suite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12871?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-12871 published?: CVE-2019-12871 was published on 2019-06-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:phoenixcontact:automationworx_software_suite:*:*:*:*:*:*:*:*

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