What’s Vulnerable › Vulnerabilities

CVE-2021-43983: WECON LeviStudioU

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-13 · updated 2026-06-17
• Weakness: CWE-121

Description

WECON LeviStudioU Versions 2019-09-21 and prior are vulnerable to multiple stack-based buffer overflow instances while parsing project files, which may allow an attacker to execute arbitrary code.

Affected products

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

References

• https://www.cisa.gov/uscert/ics/advisories/icsa-21-343-02
• https://www.zerodayinitiative.com/advisories/ZDI-22-034/
• https://www.zerodayinitiative.com/advisories/ZDI-22-035/
• https://www.zerodayinitiative.com/advisories/ZDI-22-036/
• https://www.zerodayinitiative.com/advisories/ZDI-22-037/
• https://www.zerodayinitiative.com/advisories/ZDI-22-038/
• https://www.zerodayinitiative.com/advisories/ZDI-22-039/
• https://www.zerodayinitiative.com/advisories/ZDI-22-040/
• https://www.zerodayinitiative.com/advisories/ZDI-22-041/
• https://www.zerodayinitiative.com/advisories/ZDI-22-042/
• https://www.zerodayinitiative.com/advisories/ZDI-22-043/
• https://www.zerodayinitiative.com/advisories/ZDI-22-044/

Get alerted when CVE-2021-43983 or the next vulnerability affects your stack