How severe is CVE-2019-13538?

CVE-2019-13538 has a CVSS 3.x base score of 8.6, 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-2019-13538 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-13538?

CVE-2019-13538 affects Codesys. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-13538?

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-2019-13538 published?

CVE-2019-13538 was published on 2019-09-17 and last updated on 2026-06-17.

CVE-2019-13538

CVE-2019-13538 is a high-severity vulnerability in Codesys with a CVSS 3.x base score of 8.6. 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-79.

Key facts

Severity: High (CVSS 3.x base score 8.6)
CVSS v2: 6.8
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Codesys
Published: 2019-09-17
Last modified: 2026-06-17

Description

3S-Smart Software Solutions GmbH CODESYS V3 Library Manager, all versions prior to 3.5.16.0, allows the system to display active library content without checking its validity, which may allow the contents of manipulated libraries to be displayed or executed. The issue also exists for source libraries, but 3S-Smart Software Solutions GmbH strongly recommends distributing compiled libraries only.

Frequently asked questions

What is CVE-2019-13538?: 3S-Smart Software Solutions GmbH CODESYS V3 Library Manager, all versions prior to 3.5.16.0, allows the system to display active library content without checking its validity, which may allow the contents of manipulated libraries to be displayed or executed. The issue also exists for source libraries, but 3S-Smart Software Solutions GmbH strongly recommends distributing compiled libraries only.
How severe is CVE-2019-13538?: CVE-2019-13538 has a CVSS 3.x base score of 8.6, 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-2019-13538 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-13538?: CVE-2019-13538 affects Codesys. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-13538?: 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-2019-13538 published?: CVE-2019-13538 was published on 2019-09-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:codesys:codesys:*:*:*:*:*:*:*:*

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