CVE-2021-23138

WECON LeviStudioU

7.8 High

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

8.60%Up 7.9 points since Jan 15, 2022

What each source reports

CVE List Score used 7.8

WECON LeviStudioU

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.

Record: CVE-2021-23138
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-121
Updated: 2026-11-02

EUVDEUVD-2021-10255 7.8

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.

Record: EUVD-2021-10255
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-rvhx-r576-jx25 No score

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow,...

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.

Record: GHSA-rvhx-r576-jx25
Weakness: CWE-787
Updated: 2026-11-02

NVD 7.8

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to remotely execute code.

Record: CVE-2021-23138
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0: 6.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:P
Weakness: CWE-121, CWE-787
Updated: 2026-11-02

Affected products

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-23138 is a high vulnerability (CVSS 7.8) in We-con Levistudiou, published January 14, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.60%, the 95th percentile. No source names a fixed version.

References

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