{
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    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-5071",
        "assignerOrgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
        "state": "PUBLISHED",
        "assignerShortName": "zephyr",
        "dateReserved": "2026-03-27T23:41:28.910Z",
        "datePublished": "2026-05-30T07:15:56.417Z",
        "dateUpdated": "2026-06-01T13:51:32.526Z"
    },
    "containers": {
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            "affected": [
                {
                    "defaultStatus": "unaffected",
                    "packageName": "Zephyr",
                    "product": "Zephyr",
                    "repo": "https://github.com/zephyrproject-rtos/zephyr",
                    "vendor": "zephyrproject-rtos",
                    "versions": [
                        {
                            "lessThanOrEqual": "4.3",
                            "status": "affected",
                            "version": "*",
                            "versionType": "git"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "can: Local Denial of Service via SocketCAN Send"
                        }
                    ],
                    "value": "The SocketCAN implementation validates the length of a user-provided buffer containing a socketcan_frame object using only a NET_ASSERT statement in zcan_sendto_ctx() before dereferencing it in socketcan_to_can_frame(). In production builds where assertions are disabled, a userspace application that controls the length passed to a sendto syscall can supply an incomplete or truncated frame, causing socketcan_to_can_frame() to dereference fields beyond the end of the buffer. This results in an out-of-bounds read that can cause denial-of-service crashes or, because the parsed frame contents are transmitted on the network, leak adjacent memory."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "LOCAL",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.1,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "LOW",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "LOW",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H",
                        "version": "3.1"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-125",
                            "description": "Out-of-bounds Read",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "e2e69745-5e70-4e92-8431-deb5529a81ad",
                "shortName": "zephyr",
                "dateUpdated": "2026-05-30T07:15:56.417Z"
            },
            "references": [
                {
                    "url": "https://github.com/zephyrproject-rtos/zephyr/security/advisories/GHSA-c3w6-x7m3-3c58"
                }
            ],
            "source": {
                "discovery": "UNKNOWN"
            },
            "title": "can: Local Denial of Service via SocketCAN Send",
            "x_generator": {
                "engine": "swg-tools/create-cve-info"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-01T13:51:23.839460Z",
                                "id": "CVE-2026-5071",
                                "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": "2026-06-01T13:51:32.526Z"
                }
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        ]
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}