{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45930", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.086Z", "datePublished": "2026-05-27T12:17:48.689Z", "dateUpdated": "2026-06-19T11:58:46.478Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-19T11:58:46.478Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mctp: ensure our nlmsg responses are initialised\n\nSyed Faraz Abrar (@farazsth98) from Zellic, and Pumpkin (@u1f383) from\nDEVCORE Research Team working with Trend Micro Zero Day Initiative\nreport that a RTM_GETNEIGH will return uninitalised data in the pad\nbytes of the ndmsg data.\n\nEnsure we're initialising the netlink data to zero, in the link, addr\nand neigh response messages."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mctp/device.c", "net/mctp/neigh.c", "net/mctp/route.c"], "versions": [{"version": "583be982d93479ea3d85091b0fd0b01201ede87d", "lessThan": "b37da3ac099e145bcd3be82c745a8d335772e3af", "status": "affected", "versionType": "git"}, {"version": "583be982d93479ea3d85091b0fd0b01201ede87d", "lessThan": "c4f840437e7641764de15f2de951ac8335d641f1", "status": "affected", "versionType": "git"}, {"version": "583be982d93479ea3d85091b0fd0b01201ede87d", "lessThan": "963537a26fd892f7e414a091f807b44aeee97a7d", "status": "affected", "versionType": "git"}, {"version": "583be982d93479ea3d85091b0fd0b01201ede87d", "lessThan": "976612471a9e6ead6ceffc241e4d0a1aac90b36a", "status": "affected", "versionType": "git"}, {"version": "583be982d93479ea3d85091b0fd0b01201ede87d", "lessThan": 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"https://git.kernel.org/stable/c/54ed418de62a148a655262da682a050fa05f7924"}, {"url": "https://git.kernel.org/stable/c/6fb6a97c86abb8592158088afaea0eb464cf9de1"}, {"url": "https://git.kernel.org/stable/c/a6a9bc544b675d8b5180f2718ec985ad267b5cbf"}], "title": "net: mctp: ensure our nlmsg responses are initialised", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/mctp/device.c", "net/mctp/neigh.c", "net/mctp/route.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "976612471a9e6ead6ceffc241e4d0a1aac90b36a", "status": "affected", "version": "583be982d93479ea3d85091b0fd0b01201ede87d", "versionType": "git"}, {"lessThan": "54ed418de62a148a655262da682a050fa05f7924", "status": "affected", "version": "583be982d93479ea3d85091b0fd0b01201ede87d", "versionType": "git"}, {"lessThan": "6fb6a97c86abb8592158088afaea0eb464cf9de1", "status": "affected", "version": "583be982d93479ea3d85091b0fd0b01201ede87d", "versionType": "git"}, {"lessThan": "a6a9bc544b675d8b5180f2718ec985ad267b5cbf", "status": "affected", "version": "583be982d93479ea3d85091b0fd0b01201ede87d", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/mctp/device.c", "net/mctp/neigh.c", "net/mctp/route.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.15"}, {"lessThan": "5.15", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.93", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.35", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mctp: ensure our nlmsg responses are initialised\n\nSyed Faraz Abrar (@farazsth98) from Zellic, and Pumpkin (@u1f383) from\nDEVCORE Research Team working with Trend Micro Zero Day Initiative\nreport that a RTM_GETNEIGH will return uninitalised data in the pad\nbytes of the ndmsg data.\n\nEnsure we're initialising the netlink data to zero, in the link, addr\nand neigh response messages."}], "id": "CVE-2026-45930", "lastModified": "2026-06-17T10:52:44.890", "metrics": {}, "published": "2026-05-27T14:17:08.947", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/54ed418de62a148a655262da682a050fa05f7924"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6fb6a97c86abb8592158088afaea0eb464cf9de1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/976612471a9e6ead6ceffc241e4d0a1aac90b36a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a6a9bc544b675d8b5180f2718ec985ad267b5cbf"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: net: mctp: ensure our nlmsg responses are initialised", "id": "2482010", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482010"}, "csaw": false, "cwe": "CWE-824", "details": ["A flaw was found in the Linux kernel's Multi-Channel Transport Protocol (MCTP) networking implementation. When processing a RTM_GETNEIGH request, the system may return uninitialized data in the ndmsg pad bytes. This can allow a local attacker to obtain sensitive information from kernel memory, leading to information disclosure."], "name": "CVE-2026-45930", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-45930\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-45930\nhttps://lore.kernel.org/linux-cve-announce/2026052726-CVE-2026-45930-1ec6@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[583be982d93479ea3d85091b0fd0b01201ede87d,6fb6a97c86abb8592158088afaea0eb464cf9de1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[583be982d93479ea3d85091b0fd0b01201ede87d,a6a9bc544b675d8b5180f2718ec985ad267b5cbf)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.15"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.4,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T20:30:40.243151+00:00", "updated": "2026-05-28T15:30:05.271299+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}