How severe is CVE-2018-18994?

CVE-2018-18994 has a CVSS 3.x base score of 7.1, 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 none, and availability high.

Is CVE-2018-18994 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-18994?

CVE-2018-18994 affects Laquisscada Laquis Scada. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-18994?

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-2018-18994 published?

CVE-2018-18994 was published on 2019-03-27 and last updated on 2026-06-17.

CVE-2018-18994

CVE-2018-18994 is a high-severity vulnerability in Laquisscada Laquis Scada with a CVSS 3.x base score of 7.1. 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 7.8
EPSS exploit prediction: 1% (60th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Laquisscada Laquis Scada
Published: 2019-03-27
Last modified: 2026-06-17

Description

LCDS Laquis SCADA prior to version 4.1.0.4150 allows an out of bounds read when opening a specially crafted project file, which may cause a system crash or allow data exfiltration.

Frequently asked questions

What is CVE-2018-18994?: LCDS Laquis SCADA prior to version 4.1.0.4150 allows an out of bounds read when opening a specially crafted project file, which may cause a system crash or allow data exfiltration.
How severe is CVE-2018-18994?: CVE-2018-18994 has a CVSS 3.x base score of 7.1, 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 none, and availability high.
Is CVE-2018-18994 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (60th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-18994?: CVE-2018-18994 affects Laquisscada Laquis Scada. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-18994?: 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-2018-18994 published?: CVE-2018-18994 was published on 2019-03-27 and last updated on 2026-06-17.

References

https://ics-cert.us-cert.gov/advisories/ICSA-19-015-01

Affected products (1)

cpe:2.3:a:laquisscada:laquis_scada:*:*:*:*:*:*:*:*

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