What’s Vulnerable › Vulnerabilities

CVE-2020-27253

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-26 · updated 2026-06-17
• Weakness: CWE-20

Description

A flaw exists in the Ingress/Egress checks routine of FactoryTalk Linx Version 6.11 and prior. This vulnerability could allow a remote, unauthenticated attacker to specifically craft a malicious packet resulting in a denial-of-service condition on the device.

Affected products

• Rockwell Automation FactoryTalk Linx: through 6.11

References

• https://us-cert.cisa.gov/ics/advisories/icsa-20-329-01
• https://us-cert.cisa.gov/ics/advisories/icsa-20-329-01

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