{
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
                "shortName": "siemens",
                "dateUpdated": "2023-08-08T09:20:03.377Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability has been identified in APOGEE PXC Compact (BACnet) (All versions < V3.5.5), APOGEE PXC Compact (P2 Ethernet) (All versions < V2.8.20), APOGEE PXC Modular (BACnet) (All versions < V3.5.5), APOGEE PXC Modular (P2 Ethernet) (All versions < V2.8.20), Nucleus NET (All versions), Nucleus ReadyStart V3 (All versions < V2017.02.3), Nucleus ReadyStart V4 (All versions < V4.1.0), Nucleus Source Code (Versions including affected DNS modules), SIMOTICS CONNECT 400 (All versions < V0.5.0.0), TALON TC Compact (BACnet) (All versions < V3.5.5), TALON TC Modular (BACnet) (All versions < V3.5.5). The DNS domain name label parsing functionality does not properly validate the null-terminated name in DNS-responses. The parsing of malformed responses could result in a read past the end of an allocated structure. An attacker with a privileged position in the network could leverage this vulnerability to cause a denial-of-service condition or leak the read memory."
                }
            ],
            "affected": [
                {
                    "vendor": "Siemens",
                    "product": "APOGEE PXC Compact (BACnet)",
                    "versions": [
                        {
                            "version": "All versions < V3.5.5",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "APOGEE PXC Compact (P2 Ethernet)",
                    "versions": [
                        {
                            "version": "All versions < V2.8.20",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "APOGEE PXC Modular (BACnet)",
                    "versions": [
                        {
                            "version": "All versions < V3.5.5",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "APOGEE PXC Modular (P2 Ethernet)",
                    "versions": [
                        {
                            "version": "All versions < V2.8.20",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "Nucleus NET",
                    "versions": [
                        {
                            "version": "All versions",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "Nucleus ReadyStart V3",
                    "versions": [
                        {
                            "version": "All versions < V2017.02.3",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "Nucleus ReadyStart V4",
                    "versions": [
                        {
                            "version": "All versions < V4.1.0",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "Nucleus Source Code",
                    "versions": [
                        {
                            "version": "Versions including affected DNS modules",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "SIMOTICS CONNECT 400",
                    "versions": [
                        {
                            "version": "All versions < V0.5.0.0",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "TALON TC Compact (BACnet)",
                    "versions": [
                        {
                            "version": "All versions < V3.5.5",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                },
                {
                    "vendor": "Siemens",
                    "product": "TALON TC Modular (BACnet)",
                    "versions": [
                        {
                            "version": "All versions < V3.5.5",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C",
                        "baseScore": 6.5,
                        "baseSeverity": "MEDIUM"
                    }
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-170",
                            "description": "CWE-170: Improper Null Termination",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf"
                },
                {
                    "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf"
                },
                {
                    "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf"
                }
            ]
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-04T16:18:45.573Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-705111.pdf",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-669158.pdf",
                        "tags": [
                            "x_transferred"
                        ]
                    },
                    {
                        "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-180579.pdf",
                        "tags": [
                            "x_transferred"
                        ]
                    }
                ]
            }
        ]
    },
    "cveMetadata": {
        "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "assignerShortName": "siemens",
        "cveId": "CVE-2020-27736",
        "datePublished": "2021-04-22T20:42:19.000Z",
        "dateReserved": "2020-10-26T00:00:00.000Z",
        "dateUpdated": "2024-08-04T16:18:45.573Z",
        "state": "PUBLISHED"
    },
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1"
}