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Fencer Vulns
high 7.5

CVE-2021-44221 json

A vulnerability has been identified in SIMATIC eaSie Core Package (All versions < V22.00).

published 2022-07-12 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-31070

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.4%
EPSS 1.4% chance of exploitation in 30 days, percentile 73%
public exploits
0
none known

Summary

A vulnerability has been identified in SIMATIC eaSie Core Package (All versions < V22.00). The affected systems do not properly validate input that is sent to the underlying message passing framework. This could allow an remote attacker to trigger a denial of service of the affected system.

Patch / fix

  • siemens simatic_easie_core_package 22.00

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-22-195-15 updated cvss 7.5

Siemens SIMATIC eaSie Core Package

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

1.43% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • Siemens SIMATIC eaSie Core Package

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.