{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2024-21909",
        "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "state": "PUBLISHED",
        "assignerShortName": "VulnCheck",
        "dateReserved": "2024-01-03T14:21:17.583Z",
        "datePublished": "2024-01-03T15:41:57.739Z",
        "dateUpdated": "2026-07-14T22:54:35.829Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://nuget.org/packages",
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:nuget/PeterO.Cbor",
                    "packageName": "PeterO.Cbor",
                    "versions": [
                        {
                            "lessThan": "4.5.1",
                            "status": "affected",
                            "version": "4.0.0",
                            "versionType": "semver 2.0.0"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
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                    "nodes": [
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                            "cpeMatch": [
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                                    "criteria": "cpe:2.3:a:peteroupc:cbor:*:*:*:*:*:.net:*:*",
                                    "versionEndExcluding": "4.5.1",
                                    "versionStartIncluding": "4.0.0",
                                    "vulnerable": true
                                }
                            ],
                            "negate": false,
                            "operator": "OR"
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                    ],
                    "operator": "OR"
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "PeterO.Cbor versions 4.0.0 through 4.5.0 are vulnerable to a denial of \nservice vulnerability. An attacker may trigger the denial of service \ncondition by providing crafted data to the DecodeFromBytes or other \ndecoding mechanisms in PeterO.Cbor. Depending on the usage of the \nlibrary, an unauthenticated and remote attacker may be able to cause the\n denial of service condition.<br>"
                        }
                    ],
                    "value": "PeterO.Cbor versions 4.0.0 through 4.5.0 are vulnerable to a denial of \nservice vulnerability. An attacker may trigger the denial of service \ncondition by providing crafted data to the DecodeFromBytes or other \ndecoding mechanisms in PeterO.Cbor. Depending on the usage of the \nlibrary, an unauthenticated and remote attacker may be able to cause the\n denial of service condition."
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-407",
                            "description": "CWE-407 Inefficient Algorithmic Complexity",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
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            ],
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                "shortName": "VulnCheck",
                "dateUpdated": "2026-07-14T22:54:35.829Z"
            },
            "references": [
                {
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://github.com/peteroupc/CBOR/security/advisories/GHSA-6r92-cgxc-r5fg"
                },
                {
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/peteroupc/CBOR/commit/b4117dbbb4cd5a4a963f9d0c9aa132f033e15b95"
                },
                {
                    "tags": [
                        "related"
                    ],
                    "url": "https://github.com/peteroupc/CBOR/compare/v4.5...v4.5.1"
                },
                {
                    "tags": [
                        "vendor-advisory"
                    ],
                    "url": "https://github.com/advisories/GHSA-6r92-cgxc-r5fg"
                },
                {
                    "tags": [
                        "third-party-advisory"
                    ],
                    "url": "https://vulncheck.com/advisories/vc-advisory-GHSA-6r92-cgxc-r5fg"
                }
            ],
            "source": {
                "discovery": "INTERNAL"
            },
            "title": "Denial of service in CBOR library",
            "x_generator": {
                "engine": "vulncheck"
            }
        },
        "adp": [
            {
                "providerMetadata": {
                    "orgId": "af854a3a-2127-422b-91ae-364da2661108",
                    "shortName": "CVE",
                    "dateUpdated": "2024-08-01T22:35:34.565Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "tags": [
                            "vendor-advisory",
                            "x_transferred"
                        ],
                        "url": "https://github.com/peteroupc/CBOR/security/advisories/GHSA-6r92-cgxc-r5fg"
                    },
                    {
                        "tags": [
                            "patch",
                            "x_transferred"
                        ],
                        "url": "https://github.com/peteroupc/CBOR/commit/b4117dbbb4cd5a4a963f9d0c9aa132f033e15b95"
                    },
                    {
                        "tags": [
                            "related",
                            "x_transferred"
                        ],
                        "url": "https://github.com/peteroupc/CBOR/compare/v4.5...v4.5.1"
                    },
                    {
                        "tags": [
                            "third-party-advisory",
                            "x_transferred"
                        ],
                        "url": "https://github.com/advisories/GHSA-6r92-cgxc-r5fg"
                    },
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                        "tags": [
                            "third-party-advisory",
                            "x_transferred"
                        ],
                        "url": "https://vulncheck.com/advisories/vc-advisory-GHSA-6r92-cgxc-r5fg"
                    }
                ]
            },
            {
                "metrics": [
                    {
                        "cvssV3_1": {
                            "scope": "UNCHANGED",
                            "version": "3.1",
                            "baseScore": 7.5,
                            "attackVector": "NETWORK",
                            "baseSeverity": "HIGH",
                            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                            "integrityImpact": "NONE",
                            "userInteraction": "NONE",
                            "attackComplexity": "LOW",
                            "availabilityImpact": "HIGH",
                            "privilegesRequired": "NONE",
                            "confidentialityImpact": "NONE"
                        }
                    },
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-05-09T23:31:17.137288Z",
                                "id": "CVE-2024-21909",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-06-03T14:43:33.578Z"
                }
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}