CVE-2026-53209

{"id": "CVE-2026-53209", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "63f365eb4d1668a04070151b555d55a07ede8d4b", "lessThan": "10b0e832cc05d7aef4b92bed912cbd4a395d0862", "versionType": "git"}, {"status": "affected", "version": "c621211b308816889f0a3246de448bfcef8ab3ab", "lessThan": "1338ee049a8910ba6c9cee963920e978e6893c7d", "versionType": "git"}, {"status": "affected", "version": "907ef6e12fb558a0763e894311eb245a94c192dd", "lessThan": "02f50e8bb69f9b22516163a09922f5537d3b12d1", "versionType": "git"}, {"status": "affected", "version": "5725bc608252050ed8a4d47d59225b7dd73474c8", "lessThan": "dafc9f57140e66a10945127aa7433c3d715dc253", "versionType": "git"}, {"status": "affected", "version": "5725bc608252050ed8a4d47d59225b7dd73474c8", "lessThan": "cdd8bbdbee763fdf5bf343e6f7d4e79347739f62", "versionType": "git"}, {"status": "affected", "version": "5725bc608252050ed8a4d47d59225b7dd73474c8", "lessThan": "5c65b96b549ea2dcfde497436bf9e048deb87758", "versionType": "git"}, {"status": "affected", "version": "15da883c010cbc2a84aec1738b6ad6ee477846de", "versionType": "git"}, {"status": "affected", "version": "6.1.142", "lessThan": "6.1.176", "versionType": "semver"}, {"status": "affected", "version": "6.6.94", "lessThan": "6.6.143", "versionType": "semver"}, {"status": "affected", "version": "6.12.34", "lessThan": "6.12.94", "versionType": "semver"}, {"status": "affected", "version": "6.15.3", "lessThan": "6.16", "versionType": "semver"}], "programFiles": ["net/bluetooth/hci_sync.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"status": "unaffected", "version": "0", "lessThan": "6.16", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.176", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.143", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.94", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.36", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.13", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["net/bluetooth/hci_sync.c"], "defaultStatus": "affected"}]}], "published": "2026-06-25T09:16:38.490", "references": [{"url": "https://git.kernel.org/stable/c/02f50e8bb69f9b22516163a09922f5537d3b12d1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/10b0e832cc05d7aef4b92bed912cbd4a395d0862", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/1338ee049a8910ba6c9cee963920e978e6893c7d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5c65b96b549ea2dcfde497436bf9e048deb87758", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cdd8bbdbee763fdf5bf343e6f7d4e79347739f62", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dafc9f57140e66a10945127aa7433c3d715dc253", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-787"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: reject oversized Broadcast Announcement prepend\n\nExisting advertising instances can already hold the maximum extended\nadvertising payload. When hci_adv_bcast_annoucement() prepends the\nBroadcast Announcement service data to that payload, the combined data\nmay no longer fit in the temporary buffer used to rebuild the\nadvertising data.\n\nReject that case before copying the existing payload and report the\nfailure through the device log. This keeps the existing advertising\ndata intact and avoids overrunning the temporary buffer."}], "lastModified": "2026-07-02T20:54:10.580", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4E64E747-F591-4CC4-A5BE-EC3E82B4AAED", "versionEndExcluding": "6.1.176", "versionStartIncluding": "6.1.142"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "18A48818-666E-468B-990B-CBAC930FB157", "versionEndExcluding": "6.6.143", "versionStartIncluding": "6.6.94"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A08DF83-B0AC-481E-A637-C44B68E2160F", "versionEndExcluding": "6.12.94", "versionStartIncluding": "6.12.34"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E1DC9D17-B1EF-44AF-87B9-9BF70F8E70C7", "versionEndExcluding": "6.16", "versionStartIncluding": "6.15.3"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1A9D8D37-BEDC-49CA-9E82-4D6B11A5675C", "versionEndExcluding": "6.18.36", "versionStartIncluding": "6.16.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6A64BF9F-3BCA-42FD-98CB-8F03474D2B1E", "versionEndExcluding": "7.0.13", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "6238B17D-C12B-458F-A138-97039BFC4595"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "09709862-E348-4378-8632-5A7813EDDC86"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "415BF58A-8197-43F5-B3D7-D1D63057A26E"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A0517869-312D-4429-80C2-561086E1421C"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "85421F4E-C863-4ABF-B4B4-E887CC2F7F92"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3827F0D4-5FEE-4181-B267-5A45E7CA11FC"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.16:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7A9C2DE5-43B8-4D73-BDB5-EA55C7671A52"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0D38F0BF-A728-4133-A358-D44A2F7EE6D6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EC732D08-5F7B-46D9-B154-E60C7F4F0A97"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E5910A9D-F60A-409A-B486-FE66BFEBA9B9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "81DFF19E-9CF8-49C6-8C36-1E4038622933"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B0E8FC71-3952-444C-83E9-718DBBBEC615"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}