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CVE-2021-27486

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-04-12 · updated 2026-06-17
• Weakness: CWE-191

Description

FATEK Automation WinProladder Versions 3.30 and prior is vulnerable to an integer underflow, which may cause an out-of-bounds write and allow an attacker to execute arbitrary code.

Affected products

• FATEK Automation WinProladder: through 3.30

References

• https://us-cert.cisa.gov/ics/advisories/icsa-21-098-01
• https://us-cert.cisa.gov/ics/advisories/icsa-21-098-01

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