{
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    "cveMetadata": {
        "cveId": "CVE-2025-14956",
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "state": "PUBLISHED",
        "assignerShortName": "VulDB",
        "dateReserved": "2025-12-19T08:38:51.694Z",
        "datePublished": "2025-12-19T16:32:12.536Z",
        "dateUpdated": "2026-02-24T05:57:29.961Z"
    },
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                "shortName": "VulDB",
                "dateUpdated": "2026-02-24T05:57:29.961Z"
            },
            "title": "WebAssembly Binaryen wasm-binary.cpp readExport heap-based overflow",
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-122",
                            "lang": "en",
                            "description": "Heap-based Buffer Overflow"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "type": "CWE",
                            "cweId": "CWE-119",
                            "lang": "en",
                            "description": "Memory Corruption"
                        }
                    ]
                }
            ],
            "affected": [
                {
                    "vendor": "WebAssembly",
                    "product": "Binaryen",
                    "versions": [
                        {
                            "version": "125",
                            "status": "affected"
                        }
                    ],
                    "cpes": [
                        "cpe:2.3:a:webassembly:binaryen:*:*:*:*:*:*:*:*"
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A vulnerability was determined in WebAssembly Binaryen up to 125. Affected by this issue is the function WasmBinaryReader::readExport of the file src/wasm/wasm-binary.cpp. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Patch name: 4f52bff8c4075b5630422f902dd92a0af2c9f398. It is recommended to apply a patch to fix this issue."
                }
            ],
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                {
                    "time": "2025-12-19T00:00:00.000Z",
                    "lang": "en",
                    "value": "Advisory disclosed"
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                    "time": "2025-12-19T01:00:00.000Z",
                    "lang": "en",
                    "value": "VulDB entry created"
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                    "time": "2025-12-30T20:37:02.000Z",
                    "lang": "en",
                    "value": "VulDB entry last update"
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            ],
            "credits": [
                {
                    "lang": "en",
                    "value": "Oneafter (VulDB User)",
                    "type": "reporter"
                }
            ],
            "references": [
                {
                    "url": "https://vuldb.com/?id.337592",
                    "name": "VDB-337592 | WebAssembly Binaryen wasm-binary.cpp readExport heap-based overflow",
                    "tags": [
                        "vdb-entry",
                        "technical-description"
                    ]
                },
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                    "url": "https://vuldb.com/?ctiid.337592",
                    "name": "VDB-337592 | CTI Indicators (IOB, IOC, IOA)",
                    "tags": [
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                },
                {
                    "url": "https://vuldb.com/?submit.717315",
                    "name": "Submit #717315 | WebAssembly binaryen 9a226ac Heap-based Buffer Overflow",
                    "tags": [
                        "third-party-advisory"
                    ]
                },
                {
                    "url": "https://github.com/WebAssembly/binaryen/issues/8089",
                    "tags": [
                        "issue-tracking"
                    ]
                },
                {
                    "url": "https://github.com/WebAssembly/binaryen/pull/8092",
                    "tags": [
                        "issue-tracking"
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                {
                    "url": "https://github.com/oneafter/1204/blob/main/hbf",
                    "tags": [
                        "exploit"
                    ]
                },
                {
                    "url": "https://github.com/WebAssembly/binaryen/commit/4f52bff8c4075b5630422f902dd92a0af2c9f398",
                    "tags": [
                        "patch"
                    ]
                },
                {
                    "url": "https://github.com/WebAssembly/binaryen/",
                    "tags": [
                        "product"
                    ]
                }
            ],
            "tags": [
                "x_open-source"
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        },
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            {
                "metrics": [
                    {
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                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-12-19T17:24:53.817424Z",
                                "id": "CVE-2025-14956",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
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                                        "Automatable": "no"
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                                        "Technical Impact": "partial"
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