What’s Vulnerable › Vulnerabilities

CVE-2021-23138: WECON LeviStudioU

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 8.6% 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-121

Description

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.

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-22-129/
• https://www.zerodayinitiative.com/advisories/ZDI-22-131/
• https://www.zerodayinitiative.com/advisories/ZDI-22-133/
• https://www.zerodayinitiative.com/advisories/ZDI-22-134/
• https://www.zerodayinitiative.com/advisories/ZDI-22-135/
• https://www.zerodayinitiative.com/advisories/ZDI-22-136/
• https://www.zerodayinitiative.com/advisories/ZDI-22-137/
• https://www.zerodayinitiative.com/advisories/ZDI-22-138/
• https://www.zerodayinitiative.com/advisories/ZDI-22-139/
• https://www.zerodayinitiative.com/advisories/ZDI-22-140/
• https://www.zerodayinitiative.com/advisories/ZDI-22-141/

Get alerted when CVE-2021-23138 or the next vulnerability affects your stack