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Vulnerability record · CVE-2020-16243 · published 23 February 2021

CVE-2020-16243: We-con levistudiou stack-based buffer overflow vulnerability

We Con · Levistudiou

Multiple buffer overflow vulnerabilities exist when LeviStudioU (Version 2019-09-21 and prior) processes project files. Opening a specially crafted project file could allow an attacker to exploit and execute code under the privileges of the application.

7.8 CVSS 3.1 High EPSS 12% · top 3.9% CWE-121 · Stack-based buffer overflowCWE-787 · Out-of-bounds write
7.8CVSS 3.1 base score, v2 6.8
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Multiple buffer overflow vulnerabilities exist when LeviStudioU (Version 2019-09-21 and prior) processes project files. Opening a specially crafted project file could allow an attacker to exploit and execute code under the privileges of the application.

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://us-cert.cisa.gov/ics/advisories/icsa-20-238-03 Third Party AdvisoryUS Government Resource
https://us-cert.cisa.gov/ics/advisories/icsa-20-238-03 Third Party AdvisoryUS Government Resource

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.8CVE-2018-10610We-con levistudiou out-of-bounds write vulnerabilityAn out-of-bounds vulnerability in LeviStudioU, Versions 1.8.29 and 1.8.44 can be exploited when the application processes specially crafted project f…EPSS 1.1%8.8CVE-2018-10614We-con levistudiou xml external entity (xxe) vulnerabilityAn XXE vulnerability in LeviStudioU, Versions 1.8.29 and 1.8.44 can be exploited when the application processes specially crafted project XML files.EPSS 1.1%8.8CVE-2018-10602We-con levistudiou stack-based buffer overflow vulnerabilityWECON LeviStudio Versions 1.8.29 and 1.8.44 have multiple stack-based buffer overflow vulnerabilities that can be exploited when the application proc…EPSS 1.9%8.8CVE-2018-10606We-con levistudiou heap-based buffer overflow vulnerabilityWECON LeviStudio Versions 1.8.29 and 1.8.44 have multiple heap-based buffer overflow vulnerabilities that can be exploited when the application proce…EPSS 1.9%7.8CVE-2021-23157We-con levistudiou heap-based buffer overflow vulnerabilityWECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a heap-based buffer overflow, which may allow an attacker to remotely execute code.EPSS 7.6%7.8CVE-2021-23138We-con levistudiou stack-based buffer overflow vulnerabilityWECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.EPSS 8.6%7.8CVE-2021-43983We-con levistudiou stack-based buffer overflow vulnerabilityWECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to multiple stack-based buffer overflow instances while parsing project files, which m…EPSS 2.7%7.8CVE-2020-25199We-con levistudiou heap-based buffer overflow vulnerabilityA heap-based buffer overflow vulnerability exists within the WECON LeviStudioU Release Build 2019-09-21 and prior when processing project files. Open…EPSS 1.3%

Source: NIST National Vulnerability Database (record CVE-2020-16243), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.