{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2023-53680",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-10-07T15:16:59.664Z",
        "datePublished": "2025-10-07T15:21:34.626Z",
        "dateUpdated": "2026-05-11T19:49:50.583Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-11T19:49:50.583Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL\n\nOPDESC() simply indexes into nfsd4_ops[] by the op's operation\nnumber, without range checking that value. It assumes callers are\ncareful to avoid calling it with an out-of-bounds opnum value.\n\nnfsd4_decode_compound() is not so careful, and can invoke OPDESC()\nwith opnum set to OP_ILLEGAL, which is 10044 -- well beyond the end\nof nfsd4_ops[]."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/nfsd/nfs4xdr.c"
                    ],
                    "versions": [
                        {
                            "version": "f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8",
                            "lessThan": "50827896c365e0f6c8b55ed56d444dafd87c92c5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8",
                            "lessThan": "a64160124d5a078be0c380b1e8a0bad2d040d3a1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8",
                            "lessThan": "ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8",
                            "lessThan": "f352c41fa718482979e7e6b71b4da2b718e381cc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "f4f9ef4a1b0a1ca80b152e28e176d69515bdf7e8",
                            "lessThan": "804d8e0a6e54427268790472781e03bc243f4ee3",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/nfsd/nfs4xdr.c"
                    ],
                    "versions": [
                        {
                            "version": "4.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.220",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.107",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.24",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.2.11",
                            "lessThanOrEqual": "6.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "5.10.220"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "5.15.107"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "6.1.24"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "6.2.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.14",
                                    "versionEndExcluding": "6.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/50827896c365e0f6c8b55ed56d444dafd87c92c5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a64160124d5a078be0c380b1e8a0bad2d040d3a1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ffcbcf087581ae68ddc0a21460f7ecd4315bdd0e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f352c41fa718482979e7e6b71b4da2b718e381cc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/804d8e0a6e54427268790472781e03bc243f4ee3"
                }
            ],
            "title": "NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}