HOMEVULNERABILITIESCVE-2019-6536
HIGH

CVE-2019-6536

CWE-787Published: March 27, 2019· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2019-6536 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

lcds1 product(s)
laquis scada
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-19-073-01
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-19-073-01

All References (4)

→
https://ics-cert.us-cert.gov/advisories/ICSA-19-073-01Third Party Advisory · US Government Resource
→
https://www.zerodayinitiative.com/advisories/ZDI-19-307/
→
https://ics-cert.us-cert.gov/advisories/ICSA-19-073-01Third Party Advisory · US Government Resource
→
https://www.zerodayinitiative.com/advisories/ZDI-19-307/

Quick Facts

CVE IDCVE-2019-6536
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-787
CISA KEVNo
Affected1 vendor(s)
PublishedMar 27, 2019

Related CVEs (CWE-787)

CVE-2004-0574
10.0
CVE-2026-42369
10.0
CVE-2015-0235
10.0
CVE-2004-1287
10.0
CVE-2018-10718
10.0
CVE-2026-4746
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-6536 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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