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EUVD-2021-20397

🗓️ 07 Oct 2025 00:30:54Reported by EUVDType 
euvd
 euvd
🔗 euvd.enisa.europa.eu👁 2 Views

Vulnerability in SIPROTEC 5 relays allows Denial-of-Service via crafted packets on port 4443 tcp

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Circl
CVE-2021-33720
20 Nov 202118:31
circl
CNNVD
Siemens SIPROTEC 5 代码注入漏洞
14 Sep 202100:00
cnnvd
CNVD
Siemens SIPROTEC 5 relays buffer overflow vulnerability (CNVD-2021-71445)
15 Sep 202100:00
cnvd
CVE
CVE-2021-33720
14 Sep 202110:47
cve
Cvelist
CVE-2021-33720
14 Sep 202110:47
cvelist
ICS
Siemens SIPROTEC 5 relays (Update A)
14 Sep 202100:00
ics
NVD
CVE-2021-33720
14 Sep 202111:15
nvd
Prion
Race condition
14 Sep 202111:15
prion
RedhatCVE
CVE-2021-33720
22 May 202518:35
redhatcve
Tenable Nessus
Siemens SIPROTEC 5 relays Buffer Copy Without Checking Size of Input (CVE-2021-33720)
7 Feb 202200:00
nessus
Rows per page
[
  {
    "enisaIdVendor": [
      {
        "id": "cc81a44d-65eb-301b-93e7-345390512d84",
        "vendor": {
          "name": "Siemens"
        }
      }
    ],
    "enisaIdProduct": [
      {
        "id": "593e4307-8068-3827-819f-3fc5f8a7cad6",
        "product": {
          "name": "SIPROTEC 5 relays with CPU variants CP050"
        },
        "product_version": "All versions < V8.80"
      },
      {
        "id": "af65e080-d554-3da9-90ba-d55426f12c91",
        "product": {
          "name": "SIPROTEC 5 relays with CPU variants CP300"
        },
        "product_version": "All versions < V8.80"
      },
      {
        "id": "d5259858-9c50-3bd9-b168-d883070e2186",
        "product": {
          "name": "SIPROTEC 5 relays with CPU variants CP100"
        },
        "product_version": "All versions < V8.80"
      }
    ]
  }
]

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07 Oct 2025 00:30Current
7.5High risk
Vulners AI Score7.5
CVSS 3.17.5
CVSS 25
EPSS0.00444
2