Siemens SIMOTICS CONNECT 400

Name: Siemens SIMOTICS CONNECT 400
Brand: Siemens

productEU

A product tracked in the threat graph; the vulnerabilities below are known to affect it.

KEV-listed

EPSS ≥ 10%

unpatched

by severity

3critical1high5medium1low

updated 2026-10-28

vulnerabilities (10)

Related CVEs.

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ID	severity	EPSS	exploitable	patched	published	affected
CVE-2019-15126US	low3.1	7.26% (94th)	Exploit	V0.4.0.22	2020-02-05	< V0.4.0.22
CVE-2020-27738US	high7.4	3.66% (90th)	—	V0.5.0.0	2021-04-22	3 versions
CVE-2020-27737US	medium6.5	3.57% (89th)	—	V0.5.0.0	2021-04-22	3 versions
CVE-2020-27736US	medium6.5	3.57% (89th)	—	V0.5.0.0	2021-04-22	3 versions
CVE-2021-31890US	critical9.1	2.22% (83rd)	—	V1.0.0.0	2021-11-09	4 versions
CVE-2021-31889US	critical9.1	2.17% (82nd)	—	V0.5.0.0	2021-11-09	2 versions
CVE-2021-31346US	critical9.1	1.97% (80th)	—	V1.0.0.0	2021-11-09	4 versions
CVE-2021-31344US	medium5.3	1.46% (73rd)	—	V0.5.0.0	2021-11-09	4 versions
CVE-2021-25677US	medium5.3OT elevated	1.06% (64th)	—	V1.0.0.0	2021-04-22	6 versions
CVE-2019-13939US	medium4.8	0.71% (54th)	—	V0.3.0.330	2020-01-16	3 versions

The flaw types (CWEs) most of these CVEs share.

CWE-125Out-of-bounds Read2 CVEs
CWE-788Access of Memory Location After End of Buffer2 CVEs
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer1 CVEs
CWE-1284Improper Validation of Specified Quantity in Input1 CVEs
CWE-170Improper Null Termination1 CVEs
CWE-191Integer Underflow (Wrap or Wraparound)1 CVEs
CWE-20Improper Input Validation1 CVEs
CWE-240Improper Handling of Inconsistent Structural Elements1 CVEs

Which sources assert this record, and when.

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