No exploitation reported

CVE-2019-12871

No exploitation reported by the sources we read.

Published2019-06-24
WeaknessCWE-416

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2019-06-2415:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-12871?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-12871?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Phoenixcontact automationworx software suite

Branch	Affected	Fixed in	Source
1.86	≤ 1.86	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-19-171-01 CISA3 known affected
PHOENIX CONTACT Automation Worx Software Suite
PC Worx Automation Worx Software Suite: Version 1.86 · PC Worx Express Automation Worx Software Suite: Version 1.86 · Config+ Automation Worx Software Suite: Version 1.86

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-19-171-01 · 3 productsPhoenix Contact is currently working on the next version of the Automation Worx Software Suite. This advisory will be updated with details of the new version when it becomes available.
Mitigation from the vendor CISA ICSA-19-171-01 · 3 productsPhoenix Contact recommends users exchange project files using only secure file exchange services, and that project files should not be exchanged via unencrypted email.
Mitigation from the vendor CISA ICSA-19-171-01 · 3 productsDo not click web links or open unsolicited attachments in email messages.
Mitigation from the vendor CISA ICSA-19-171-01 · 3 productsRefer to Recognizing and Avoiding Email Scams for more information on avoiding email scams.
Mitigation from the vendor CISA ICSA-19-171-01 · 3 productsRefer to Avoiding Social Engineering and Phishing Attacks for more information on social engineering attacks.

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.08.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
NVDweakness (CWE)CWE-416read 2026-10-23
FIRST EPSSEPSS score3.7 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2019-06-24
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-12871?

Is CVE-2019-12871 actively exploited?

Active exploitation of CVE-2019-12871 has not been confirmed. Its EPSS score was 3.7% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-12871?

CVE-2019-12871 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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