No exploitation reported

CVE-2020-16243

No exploitation reported by the sources we read.

Published2021-02-23
WeaknessCWE-121 · CWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2021-02-2317:15CVE publishedNVD
2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2020-16243?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2020-16243?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

We-con levistudiou

Branch	Affected	Fixed in	Source
2019.x	≤ 2019-09-21	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

ICSA-20-238-03 CISA1 known affected
WECON LeviStudioU (Update C)
LeviStudioU: Release Build 2019-09-21 and prior

Full record on NVD

Fix

Mitigation from the vendor CISA ICSA-20-238-03 · 1 productWECON is aware of the issue and is currently developing a solution. For more information, contact WECON online or by phone: 0086-591-87868869-894

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.8read 2026-10-23
NVDCVSS 2.06.8read 2026-10-23
CNAweakness (CWE)CWE-121read 2026-10-23
NVDweakness (CWE)CWE-787read 2026-10-23
FIRST EPSSEPSS score12.4 %read 2026-10-23

Technical details

CVSS v3 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published: 2021-02-23
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2020-16243?

Is CVE-2020-16243 actively exploited?

Active exploitation of CVE-2020-16243 has not been confirmed. Its EPSS score was 12.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-16243?

CVE-2020-16243 has a CVSS v3 base score of 7.8 (HIGH severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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