{"api_version":"1","generated_at":"2026-06-28T18:48:53+00:00","cve":"CVE-2026-53147","urls":{"html":"https://cve.report/CVE-2026-53147","api":"https://cve.report/api/cve/CVE-2026-53147.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53147","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53147"},"summary":{"title":"thunderbolt: Validate XDomain request packet size before type cast","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Validate XDomain request packet size before type cast\n\ntb_xdp_handle_request() casts the received packet buffer to\nprotocol-specific structs without verifying that the allocation\nis large enough for the target type.  A peer can send a minimal\nXDomain packet that passes the generic header length check but is\nshorter than the struct accessed after the cast, causing out-of-\nbounds reads from the kmemdup allocation.\n\nPlumb the packet length through xdomain_request_work and validate\nit against the expected struct size before each cast.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-25 09:16:32","updated_at":"2026-06-28 08:16:35"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.1","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","data":{"baseScore":8.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/07cd2787cdf8942d24a1a3ef81aa89b526fb6381","name":"https://git.kernel.org/stable/c/07cd2787cdf8942d24a1a3ef81aa89b526fb6381","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/46da5c3ea011e884028a91cf913db093920a915b","name":"https://git.kernel.org/stable/c/46da5c3ea011e884028a91cf913db093920a915b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a770e62923090d7572f1f5a8507ae551d354a057","name":"https://git.kernel.org/stable/c/a770e62923090d7572f1f5a8507ae551d354a057","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0dd61ba03d05187726ecdf9c0e2175a81b9b24f6","name":"https://git.kernel.org/stable/c/0dd61ba03d05187726ecdf9c0e2175a81b9b24f6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/79235c8add5da4bf27a12f5a5dbb579f300c059e","name":"https://git.kernel.org/stable/c/79235c8add5da4bf27a12f5a5dbb579f300c059e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a504b9f2797b739e0304d537e8aa4ce883ecce39","name":"https://git.kernel.org/stable/c/a504b9f2797b739e0304d537e8aa4ce883ecce39","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53147","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53147","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 a770e62923090d7572f1f5a8507ae551d354a057 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 0dd61ba03d05187726ecdf9c0e2175a81b9b24f6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 79235c8add5da4bf27a12f5a5dbb579f300c059e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 46da5c3ea011e884028a91cf913db093920a915b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 07cd2787cdf8942d24a1a3ef81aa89b526fb6381 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected cdae7c07e3e3509eaabc18c1640a55dc5b99c179 a504b9f2797b739e0304d537e8aa4ce883ecce39 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.176 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.143 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.94 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.36 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.13 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53147","cve":"CVE-2026-53147","epss":"0.001800000","percentile":"0.078160000","score_date":"2026-06-27","updated_at":"2026-06-28 00:08:50"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/thunderbolt/xdomain.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a770e62923090d7572f1f5a8507ae551d354a057","status":"affected","version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","versionType":"git"},{"lessThan":"0dd61ba03d05187726ecdf9c0e2175a81b9b24f6","status":"affected","version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","versionType":"git"},{"lessThan":"79235c8add5da4bf27a12f5a5dbb579f300c059e","status":"affected","version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","versionType":"git"},{"lessThan":"46da5c3ea011e884028a91cf913db093920a915b","status":"affected","version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","versionType":"git"},{"lessThan":"07cd2787cdf8942d24a1a3ef81aa89b526fb6381","status":"affected","version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","versionType":"git"},{"lessThan":"a504b9f2797b739e0304d537e8aa4ce883ecce39","status":"affected","version":"cdae7c07e3e3509eaabc18c1640a55dc5b99c179","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/thunderbolt/xdomain.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.15"},{"lessThan":"4.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"4.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"4.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.94","versionStartIncluding":"4.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.36","versionStartIncluding":"4.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"4.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"4.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Validate XDomain request packet size before type cast\n\ntb_xdp_handle_request() casts the received packet buffer to\nprotocol-specific structs without verifying that the allocation\nis large enough for the target type.  A peer can send a minimal\nXDomain packet that passes the generic header length check but is\nshorter than the struct accessed after the cast, causing out-of-\nbounds reads from the kmemdup allocation.\n\nPlumb the packet length through xdomain_request_work and validate\nit against the expected struct size before each cast."}],"metrics":[{"cvssV3_1":{"baseScore":8.1,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","version":"3.1"}}],"providerMetadata":{"dateUpdated":"2026-06-28T06:39:32.188Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a770e62923090d7572f1f5a8507ae551d354a057"},{"url":"https://git.kernel.org/stable/c/0dd61ba03d05187726ecdf9c0e2175a81b9b24f6"},{"url":"https://git.kernel.org/stable/c/79235c8add5da4bf27a12f5a5dbb579f300c059e"},{"url":"https://git.kernel.org/stable/c/46da5c3ea011e884028a91cf913db093920a915b"},{"url":"https://git.kernel.org/stable/c/07cd2787cdf8942d24a1a3ef81aa89b526fb6381"},{"url":"https://git.kernel.org/stable/c/a504b9f2797b739e0304d537e8aa4ce883ecce39"}],"title":"thunderbolt: Validate XDomain request packet size before type cast","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53147","datePublished":"2026-06-25T08:38:33.547Z","dateReserved":"2026-06-09T07:44:35.387Z","dateUpdated":"2026-06-28T06:39:32.188Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-25 09:16:32","lastModifiedDate":"2026-06-28 08:16:35","problem_types":[],"metrics":{"cvssMetricV31":[{"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","baseScore":8.1,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.2}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53147","Ordinal":"1","Title":"thunderbolt: Validate XDomain request packet size before type ca","CVE":"CVE-2026-53147","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53147","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Validate XDomain request packet size before type cast\n\ntb_xdp_handle_request() casts the received packet buffer to\nprotocol-specific structs without verifying that the allocation\nis large enough for the target type.  A peer can send a minimal\nXDomain packet that passes the generic header length check but is\nshorter than the struct accessed after the cast, causing out-of-\nbounds reads from the kmemdup allocation.\n\nPlumb the packet length through xdomain_request_work and validate\nit against the expected struct size before each cast.","Type":"Description","Title":"thunderbolt: Validate XDomain request packet size before type ca"}]}}}