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The vulnerability of microprogrammed software in Siemens SIMATIC S7 programmable logic controllers is related to insufficient verification of the communication channel source. This allows a intruder to trigger a service failure.
🗓️ 09 Jan 2026 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec🔗 bdu.fstec.ru👁 2 Views
| Reporter | Title | Published | Views | Family All 11 |
|---|---|---|---|---|
 | CVE-2025-40820 | 9 Dec 202515:03 | – | circl |
 | Siemens多款产品 安全漏洞 | 9 Dec 202500:00 | – | cnnvd |
 | CVE-2025-40820 | 9 Dec 202510:44 | – | cve |
 | CVE-2025-40820 | 9 Dec 202510:44 | – | cvelist |
 | EUVD-2025-201923 | 9 Dec 202518:30 | – | euvd |
 | Siemens Interniche IP-Stack | 9 Dec 202500:00 | – | ics |
 | Vulnerabilities fixed in Siemens products | 9 Dec 202513:15 | – | ncsc |
 | CVE-2025-40820 | 9 Dec 202516:17 | – | nvd |
 | PT-2025-49838 | 9 Dec 202500:00 | – | ptsecurity |
 | CVE-2025-40820 | 10 Dec 202511:33 | – | redhatcve |
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09 Jan 2026 00:00Current
7.2High risk
Vulners AI Score7.2
CVSS 37.5
CVSS 27.8
EPSS0.00417