What’s Vulnerable › Vulnerabilities

CVE-2021-43556: FATEK Automation WinProladder

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-28 · updated 2026-06-17
• Weakness: CWE-121

Description

FATEK WinProladder Versions 3.30_24518 and prior are vulnerable to a stack-based buffer overflow while processing project files, which may allow an attacker to execute arbitrary code.

Affected products

• FATEK Automation WinProladder: through 3.30_24518

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-320-01
• https://www.zerodayinitiative.com/advisories/ZDI-22-029/
• https://www.zerodayinitiative.com/advisories/ZDI-22-031/
• https://www.zerodayinitiative.com/advisories/ZDI-22-032/
• https://us-cert.cisa.gov/ics/advisories/icsa-21-320-01
• https://www.zerodayinitiative.com/advisories/ZDI-22-029/
• https://www.zerodayinitiative.com/advisories/ZDI-22-031/
• https://www.zerodayinitiative.com/advisories/ZDI-22-032/

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