What’s Vulnerable › Vulnerabilities

CVE-2021-23157: WECON LeviStudioU

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-01-14 · updated 2026-06-17
• Weakness: CWE-122

Description

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

Affected products

• ICS-CERT WECON LeviStudioU: through 2019-09-21

References

• https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-03
• https://www.zerodayinitiative.com/advisories/ZDI-22-130/
• https://www.zerodayinitiative.com/advisories/ZDI-22-132/
• https://www.cisa.gov/uscert/ics/advisories/icsa-21-355-03
• https://www.zerodayinitiative.com/advisories/ZDI-22-130/
• https://www.zerodayinitiative.com/advisories/ZDI-22-132/

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