What’s Vulnerable › Vulnerabilities

CVE-2021-22800

• Severity: high (CVSS 7.5 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: 2022-02-11 · updated 2026-06-17
• Weakness: CWE-20

Description

A CWE-20: Improper Input Validation vulnerability exists that could cause a Denial of Service when a crafted packet is sent to the controller over network port 1105/TCP. Affected Product: Modicon M218 Logic Controller (V5.1.0.6 and prior)

Affected products

• Modicon M218 Logic Controller (V5.1.0.6 and prior): through 5.1.0.6

References

• https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-285-04
• https://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2021-285-04

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