{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-25532",
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "state": "PUBLISHED",
        "assignerShortName": "GitHub_M",
        "dateReserved": "2026-02-02T19:59:47.373Z",
        "datePublished": "2026-02-04T17:58:08.100Z",
        "dateUpdated": "2026-02-04T19:24:47.749Z"
    },
    "containers": {
        "cna": {
            "title": "ESF-IDF is Vulnerable to WPS Enrollee Fragment Integer Underflow",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-191",
                            "lang": "en",
                            "description": "CWE-191: Integer Underflow (Wrap or Wraparound)",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "attackComplexity": "LOW",
                        "attackVector": "ADJACENT_NETWORK",
                        "availabilityImpact": "HIGH",
                        "baseScore": 6.3,
                        "baseSeverity": "MEDIUM",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "LOW",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "REQUIRED",
                        "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H",
                        "version": "3.1"
                    }
                }
            ],
            "references": [
                {
                    "name": "https://github.com/espressif/esp-idf/security/advisories/GHSA-m2h2-683f-9mw7",
                    "tags": [
                        "x_refsource_CONFIRM"
                    ],
                    "url": "https://github.com/espressif/esp-idf/security/advisories/GHSA-m2h2-683f-9mw7"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/60f992a26de17bb5406f2149a2f8282dd7ad1c59",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/60f992a26de17bb5406f2149a2f8282dd7ad1c59"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/6f6766f917bc940ffbcc97eac4765a6ab15d5f79",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/6f6766f917bc940ffbcc97eac4765a6ab15d5f79"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/73a587d42a57ece1962b6a4c530b574600650f63",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/73a587d42a57ece1962b6a4c530b574600650f63"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/b209fae993d795255827ce6b2b0d6942a377f5d4",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/b209fae993d795255827ce6b2b0d6942a377f5d4"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/b88befde6b5addcdd8d7373ce55c8052dea1e855",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/b88befde6b5addcdd8d7373ce55c8052dea1e855"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/cad36beb4cde27abcf316cd90d8d8dddbc6f213a",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/cad36beb4cde27abcf316cd90d8d8dddbc6f213a"
                },
                {
                    "name": "https://github.com/espressif/esp-idf/commit/de28801e8ea6a736b6f0db6fc0c682739363bb41",
                    "tags": [
                        "x_refsource_MISC"
                    ],
                    "url": "https://github.com/espressif/esp-idf/commit/de28801e8ea6a736b6f0db6fc0c682739363bb41"
                }
            ],
            "affected": [
                {
                    "vendor": "espressif",
                    "product": "esp-idf",
                    "versions": [
                        {
                            "version": "= 5.5.2",
                            "status": "affected"
                        },
                        {
                            "version": "= 5.4.3",
                            "status": "affected"
                        },
                        {
                            "version": "= 5.3.4",
                            "status": "affected"
                        },
                        {
                            "version": "= 5.2.6",
                            "status": "affected"
                        },
                        {
                            "version": "= 5.1.6",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
                "shortName": "GitHub_M",
                "dateUpdated": "2026-02-04T17:58:08.100Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "ESF-IDF is the Espressif Internet of Things (IOT) Development Framework. In versions 5.5.2, 5.4.3, 5.3.4, 5.2.6, and 5.1.6, a vulnerability exists in the WPS (Wi-Fi Protected Setup) Enrollee implementation where malformed EAP-WSC packets with truncated payloads can cause integer underflow during fragment length calculation. When processing EAP-Expanded (WSC) messages, the code computes frag_len by subtracting header sizes from the total packet length. If an attacker sends a packet where the EAP Length field covers only the header and flags but omits the expected payload (such as the 2-byte Message Length field when WPS_MSG_FLAG_LEN is set), frag_len becomes negative. This negative value is then implicitly cast to size_t when passed to wpabuf_put_data(), resulting in a very large unsigned value. This issue has been patched in versions 5.5.3, 5.4.4, 5.3.5, 5.2.7, and 5.1.7."
                }
            ],
            "source": {
                "advisory": "GHSA-m2h2-683f-9mw7",
                "discovery": "UNKNOWN"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-02-04T19:24:33.788979Z",
                                "id": "CVE-2026-25532",
                                "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": "2026-02-04T19:24:47.749Z"
                }
            }
        ]
    }
}