What is CVE-2021-22800?

CVE-2021-22800 is a high-severity vulnerability in Schneider-electric Modicon_m218, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2022-02-11.

How severe is CVE-2021-22800?

High severity. CVSS v3 base score is 7.5 out of 10.

Improper input validation in Schneider-electric Modicon_m218

CVE-2021-22800

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)

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.010 (59.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Schneider-electric Modicon_m218
Schneider-electric Modicon_m218_firmware
N/a Modicon M218 Logic Controller (V5.1.0.6 And Prior) — versions Modicon M218 Logic Controller (V5.1.0.6 and prior)

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

cybersecurity@se.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-22800?: CVE-2021-22800 is a high-severity vulnerability in Schneider-electric Modicon_m218, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2022-02-11.
How severe is CVE-2021-22800?: High severity. CVSS v3 base score is 7.5 out of 10.