{"api_version":"1","generated_at":"2026-07-27T02:00:41+00:00","cve":"CVE-2026-64515","urls":{"html":"https://cve.report/CVE-2026-64515","api":"https://cve.report/api/cve/CVE-2026-64515.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64515","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64515"},"summary":{"title":"wifi: mac80211: fix MLE defragmentation","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix MLE defragmentation\n\nIf either reconf or EPCS multi-link element (MLE) is contained in\na non-transmitted profile, the defragmentation routine is called\nwith a pointer to the defragmented copy, but the original elements.\n\nThis is incorrect for two reasons:\n - if the original defragmentation was needed, it will not find the\n   correct data\n - if the original frame is at a higher address, the parsing will\n   potentially overrun the heap data (though given the layout of\n   the buffers, only into the new defragmentation buffer, and then\n   it has to stop and fail once that's filled with copied data.\n\nFix it by tracking the container along with the pointer and in\ndoing so also unify the two almost identical defragmentation\nroutines.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:37","updated_at":"2026-07-25 10:17:37"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/722b3f86df80644463d29fe5451e30a617f74500","name":"https://git.kernel.org/stable/c/722b3f86df80644463d29fe5451e30a617f74500","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a74e893f30db64cdce0fc7a96d3baa417bcd55f5","name":"https://git.kernel.org/stable/c/a74e893f30db64cdce0fc7a96d3baa417bcd55f5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/55c479aae99b120489a432db9c717484e523dfd6","name":"https://git.kernel.org/stable/c/55c479aae99b120489a432db9c717484e523dfd6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4","name":"https://git.kernel.org/stable/c/1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64515","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64515","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff 1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff 55c479aae99b120489a432db9c717484e523dfd6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff 722b3f86df80644463d29fe5451e30a617f74500 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff a74e893f30db64cdce0fc7a96d3baa417bcd55f5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.9","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.9 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.92 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.34 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.11 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":"64515","cve":"CVE-2026-64515","epss":"0.001560000","percentile":"0.052300000","score_date":"2026-07-26","updated_at":"2026-07-27 00:02:02"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/parse.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4","status":"affected","version":"4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff","versionType":"git"},{"lessThan":"55c479aae99b120489a432db9c717484e523dfd6","status":"affected","version":"4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff","versionType":"git"},{"lessThan":"722b3f86df80644463d29fe5451e30a617f74500","status":"affected","version":"4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff","versionType":"git"},{"lessThan":"a74e893f30db64cdce0fc7a96d3baa417bcd55f5","status":"affected","version":"4d70e9c5488dd57ff5fcabe4d4ecf3d9dd4555ff","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/parse.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.9"},{"lessThan":"6.9","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.92","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.34","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.11","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":"6.12.92","versionStartIncluding":"6.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.34","versionStartIncluding":"6.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.11","versionStartIncluding":"6.9","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"6.9","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix MLE defragmentation\n\nIf either reconf or EPCS multi-link element (MLE) is contained in\na non-transmitted profile, the defragmentation routine is called\nwith a pointer to the defragmented copy, but the original elements.\n\nThis is incorrect for two reasons:\n - if the original defragmentation was needed, it will not find the\n   correct data\n - if the original frame is at a higher address, the parsing will\n   potentially overrun the heap data (though given the layout of\n   the buffers, only into the new defragmentation buffer, and then\n   it has to stop and fail once that's filled with copied data.\n\nFix it by tracking the container along with the pointer and in\ndoing so also unify the two almost identical defragmentation\nroutines."}],"providerMetadata":{"dateUpdated":"2026-07-25T09:14:42.418Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/1f573e17bcb7275ddd1c8f47f46ae0faf0e902a4"},{"url":"https://git.kernel.org/stable/c/55c479aae99b120489a432db9c717484e523dfd6"},{"url":"https://git.kernel.org/stable/c/722b3f86df80644463d29fe5451e30a617f74500"},{"url":"https://git.kernel.org/stable/c/a74e893f30db64cdce0fc7a96d3baa417bcd55f5"}],"title":"wifi: mac80211: fix MLE defragmentation","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64515","datePublished":"2026-07-25T09:14:42.418Z","dateReserved":"2026-07-19T15:36:31.793Z","dateUpdated":"2026-07-25T09:14:42.418Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:37","lastModifiedDate":"2026-07-25 10:17:37","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64515","Ordinal":"1","Title":"wifi: mac80211: fix MLE defragmentation","CVE":"CVE-2026-64515","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64515","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: fix MLE defragmentation\n\nIf either reconf or EPCS multi-link element (MLE) is contained in\na non-transmitted profile, the defragmentation routine is called\nwith a pointer to the defragmented copy, but the original elements.\n\nThis is incorrect for two reasons:\n - if the original defragmentation was needed, it will not find the\n   correct data\n - if the original frame is at a higher address, the parsing will\n   potentially overrun the heap data (though given the layout of\n   the buffers, only into the new defragmentation buffer, and then\n   it has to stop and fail once that's filled with copied data.\n\nFix it by tracking the container along with the pointer and in\ndoing so also unify the two almost identical defragmentation\nroutines.","Type":"Description","Title":"wifi: mac80211: fix MLE defragmentation"}]}}}