{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2025-52471",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2025-06-17T02:28:39.716Z",
        "datePublished": "2025-06-24T19:53:06.066Z",
        "dateUpdated": "2025-06-24T20:02:18.529Z"
    },
    "containers": {
        "cna": {
            "title": "ESP-NOW Integer Underflow Vulnerability Advisory",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-191",
                            "lang": "en",
                            "description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "attackVector": "NETWORK",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "privilegesRequired": "NONE",
                        "userInteraction": "NONE",
                        "vulnConfidentialityImpact": "HIGH",
                        "vulnIntegrityImpact": "HIGH",
                        "vulnAvailabilityImpact": "HIGH",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "subAvailabilityImpact": "NONE",
                        "baseScore": 7.2,
                        "baseSeverity": "HIGH",
                        "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
                        "version": "4.0"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/espressif/esp-idf/security/advisories/GHSA-hqhh-cp47-fv5g",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/espressif/esp-idf/security/advisories/GHSA-hqhh-cp47-fv5g"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/b1a379d57430d265a53aca13d59ddfbf2e7ac409",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/b1a379d57430d265a53aca13d59ddfbf2e7ac409"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/c5fc81917805f99e687c81cc56b68dc5df7ef8b5",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/c5fc81917805f99e687c81cc56b68dc5df7ef8b5"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/d4dafbdc3572387cd4f9a62b776580bc4ac3bde7",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/d4dafbdc3572387cd4f9a62b776580bc4ac3bde7"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/d6ec5a52255b17c1d6ef379e89f9de2c379042f8",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/d6ec5a52255b17c1d6ef379e89f9de2c379042f8"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/df7757d8279871fa7a2f42ef3962c6c1ec88b8a2",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/df7757d8279871fa7a2f42ef3962c6c1ec88b8a2"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/edc227c5eaeced999b5212943a9434379f8aad80",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/edc227c5eaeced999b5212943a9434379f8aad80"
                }
            ],
            "affected": [
                {
                    "vendor": "espressif",
                    "product": "esp-idf",
                    "versions": [
                        {
                            "version": "= 5.4.1",
                            "status": "affected"
                        },
                        {
                            "version": "= 5.3.3",
                            "status": "affected"
                        },
                        {
                            "version": "= 5.2.5",
                            "status": "affected"
                        },
                        {
                            "version": "= 5.1.6",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2025-06-24T19:53:06.066Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. An integer underflow vulnerability has been identified in the ESP-NOW protocol implementation within the ESP Wi-Fi component of versions 5.4.1, 5.3.3, 5.2.5, and 5.1.6 of the ESP-IDF framework. This issue stems from insufficient validation of user-supplied data length in the packet receive function. Under certain conditions, this may lead to out-of-bounds memory access and may allow arbitrary memory write operations. On systems without a memory protection scheme, this behavior could potentially be used to achieve remote code execution (RCE) on the target device. In versions 5.4.2, 5.3.4, 5.2.6, and 5.1.6, ESP-NOW has added more comprehensive validation logic on user-supplied data length during packet reception to prevent integer underflow caused by negative value calculations. For ESP-IDF v5.3 and earlier, a workaround can be applied by validating that the `data_len` parameter received in the RX callback (registered via `esp_now_register_recv_cb()`) is a positive value before further processing. For ESP-IDF v5.4 and later, no application-level workaround is available. Users are advised to upgrade to a patched version of ESP-IDF to take advantage of the built-in mitigation."
                }
            ],
            "source": {
                "advisory": "GHSA-hqhh-cp47-fv5g",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-06-24T20:02:03.737707Z",
                                "id": "CVE-2025-52471",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "yes"
                                    },
                                    {
                                        "Technical Impact": "total"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-06-24T20:02:18.529Z"
                }
            }
        ]
    }
}