How severe is CVE-2019-18236?

CVE-2019-18236 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2019-18236 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-18236?

CVE-2019-18236 affects We-con Plc Editor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-18236?

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-2019-18236 published?

CVE-2019-18236 was published on 2019-12-23 and last updated on 2026-06-17.

CVE-2019-18236

CVE-2019-18236 is a high-severity vulnerability in We-con Plc Editor with a CVSS 3.x base score of 7.8. 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-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: We-con Plc Editor
Published: 2019-12-23
Last modified: 2026-06-17

Description

Multiple buffer overflow vulnerabilities exist when the PLC Editor Version 1.3.5_20190129 processes project files. An attacker could use a specially crafted project file to exploit and execute code under the privileges of the application.

Frequently asked questions

What is CVE-2019-18236?: Multiple buffer overflow vulnerabilities exist when the PLC Editor Version 1.3.5_20190129 processes project files. An attacker could use a specially crafted project file to exploit and execute code under the privileges of the application.
How severe is CVE-2019-18236?: CVE-2019-18236 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2019-18236 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-18236?: CVE-2019-18236 affects We-con Plc Editor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-18236?: 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-2019-18236 published?: CVE-2019-18236 was published on 2019-12-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:we-con:plc_editor:1.3.5:20190129:*:*:*:*:*:*

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