High severity7.5NVD Advisory· Published Feb 11, 2022· Updated Jun 17, 2026
CVE-2021-22800
CVE-2021-22800
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
3- cpe:2.3:o:schneider-electric:modicon_m218_firmware:*:*:*:*:*:*:*:*Range: <=5.1.0.6
- Schneider Electric/Modicon M218 Logic Controllerdescription
- Range: <=V5.1.0.6
Patches
Vulnerability mechanics
References
1- download.schneider-electric.com/filesnvdPatchVendor Advisory
News mentions
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