{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-54429",
        "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "state": "PUBLISHED",
        "assignerShortName": "siemens",
        "dateReserved": "2026-06-15T10:05:28.879Z",
        "datePublished": "2026-07-14T09:19:17.249Z",
        "dateUpdated": "2026-07-14T12:15:38.712Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
                "shortName": "siemens",
                "dateUpdated": "2026-07-14T09:19:17.249Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability has been identified in SIMATIC S7-PLCSIM Advanced (All versions). Affected devices do not properly handle high-volume multicast network traffic, which can exhaust available memory resources in the affected application. This could allow an unauthenticated attacker on the local network segment to cause a denial-of-service condition of the affected application. The affected application becomes inaccessible and requires a manual restart; no project data is lost. Successful exploitation requires a specific project configuration to be already active on the targeted instance."
                }
            ],
            "affected": [
                {
                    "vendor": "Siemens",
                    "product": "SIMATIC S7-PLCSIM Advanced",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "*",
                            "versionType": "custom"
                        }
                    ],
                    "defaultStatus": "unknown"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
                        "baseScore": 7.4,
                        "baseSeverity": "HIGH"
                    }
                },
                {
                    "cvssV4_0": {
                        "version": "4.0",
                        "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L",
                        "baseScore": 6,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-770",
                            "description": "CWE-770: Allocation of Resources Without Limits or Throttling",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://cert-portal.siemens.com/productcert/html/ssa-828211.html"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-07-14T12:15:03.571205Z",
                                "id": "CVE-2026-54429",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-07-14T12:15:38.712Z"
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}