CVE•Published 2026-05-12•Modified 2026-06-29•1 article on news•5 live references•NVD data
CVE-2026-22924Siemens · Simatic_cn_4100_firmware
Vulnerability data via NVD (ingested)
CVSS v3.1
9.1
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
EPSS percentile
22
Exploit Prediction Scoring System · top 78% of all CVEs
Weaknesses (CWE)
Description
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.
Timeline
Published 2026-05-12
Modified 2026-06-29
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-22924Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Simatic Cn 4100 Firmware"Hosts Shodan identified as running Simatic Cn 4100 Firmware.
More intel sources (5)
Shodan report
vuln:CVE-2026-22924Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-22924Censys host search filtered to this CVE id.
grep.app
CVE-2026-22924Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-22924GitHub code search for direct mentions.
Google dork
"CVE-2026-22924" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.