by Kastro
Paper/Archive/CVE-2026-22924

CVE-2026-22924

Siemens SIMATIC CN 4100 — A vulnerability has been identified in SIMATIC CN 4100 (All versions < V5.0).

EPSS 0.3%CVSS 9.1
critical.is priorityof 100
32
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 22.7.227 × 204.5No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V5.0). The affected application does not properly restrict unauthenticated connections and is susceptible to resource exhaustion conditions. This could allow an attacker to disrupt normal operations or perform unauthorized actions, potentially impacting system availability and integrity.

Affected

ProductAffectedFixed inSource
SIMATIC CN 4100< V5.0V5.0CNA

Scores by source

siemens (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
siemens (CNA)8.8CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: partial

References

refcert-portal.siemens.com/productcert/html/ssa-032379.html