How severe is CVE-2019-6536?

CVE-2019-6536 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-2019-6536 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-6536?

CVE-2019-6536 affects Lcds Laquis Scada. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-6536?

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-2019-6536 published?

CVE-2019-6536 was published on 2019-03-27 and last updated on 2026-06-17.

CVE-2019-6536

CVE-2019-6536 is a high-severity vulnerability in Lcds Laquis Scada 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-787.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 1% (65th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Lcds Laquis Scada
Published: 2019-03-27
Last modified: 2026-06-17

Description

Opening a specially crafted LCDS LAquis SCADA before 4.3.1.71 ELS file may result in a write past the end of an allocated buffer, which may allow an attacker to execute remote code in the context of the current process.

Frequently asked questions

What is CVE-2019-6536?: Opening a specially crafted LCDS LAquis SCADA before 4.3.1.71 ELS file may result in a write past the end of an allocated buffer, which may allow an attacker to execute remote code in the context of the current process.
How severe is CVE-2019-6536?: CVE-2019-6536 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-2019-6536 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (65th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-6536?: CVE-2019-6536 affects Lcds Laquis Scada. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-6536?: 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-2019-6536 published?: CVE-2019-6536 was published on 2019-03-27 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lcds:laquis_scada:4.1.0.4150:*:*:*:*:*:*:*

More vulnerabilities in Lcds Laquis Scada

CVE-2018-18998 — Critical (CVSS 9.8): LCDS Laquis SCADA prior to version 4.1.0.4150 uses hard coded credentials, which may allow an attacker unauthorized…
CVE-2018-18996 — Critical (CVSS 9.8): LCDS Laquis SCADA prior to version 4.1.0.4150 allows taking in user input without proper authorization or sanitation,…
CVE-2018-17897 — Critical (CVSS 9.8): LAquis SCADA Versions 4.1.0.3870 and prior has several integer overflow to buffer overflow vulnerabilities, which may…
CVE-2018-17895 — Critical (CVSS 9.8): LAquis SCADA Versions 4.1.0.3870 and prior has several out-of-bounds read vulnerabilities, which may allow remote code…
CVE-2018-17893 — Critical (CVSS 9.8): LAquis SCADA Versions 4.1.0.3870 and prior has an untrusted pointer dereference vulnerability, which may allow remote…
CVE-2021-32989 — Critical (CVSS 9.3): When a non-existent resource is requested, the LCDS LAquis SCADA application (version 4.3.1.1011 and prior) returns…

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