326 lines
16 KiB
JSON
326 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-43047",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-01T14:12:55.979Z",
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"datePublished": "2026-05-01T14:15:42.562Z",
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"dateUpdated": "2026-10-19T19:06:11.151Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:25:32.795Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: multitouch: Check to ensure report responses match the request\n\nIt is possible for a malicious (or clumsy) device to respond to a\nspecific report's feature request using a completely different report\nID. This can cause confusion in the HID core resulting in nasty\nside-effects such as OOB writes.\n\nAdd a check to ensure that the report ID in the response, matches the\none that was requested. If it doesn't, omit reporting the raw event and\nreturn early."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerable path is reachable by a local process through /dev/uhid by creating a synthetic HID multitouch device and replying to the kernel's UHID_GET_REPORT with a mismatched report ID. Malicious physical HID devices can also trigger it, but UHID provides a higher-severity local device-file path.\nAC:L - The attacker controls the HID report descriptor and the feature-report response contents, and the bug is triggered deterministically during probe/open/resume feature fetching. There is no race or condition outside the attacker's control.\nPR:L - The local UHID path requires only access to the UHID character device as a low-privileged local user or permitted device group member. The kernel UHID create/reply path has no capable() gate requiring real root.\nUI:N - A local UHID attacker can create the virtual device and answer the kernel's GET_REPORT request directly. No separate victim action is required.\nS:U - The corruption occurs within the kernel HID/HID-core processing context and affects the same kernel security authority. It is not a VM escape, IOMMU bypass, or cross-authority boundary change.\nC:H - The fix commit states that the mismatched report response can lead to HID-core confusion with out-of-bounds writes. Kernel memory corruption is reasonably capable of producing arbitrary information disclosure primitives.\nI:H - An out-of-bounds write in kernel memory is high-integrity impact because it can corrupt kernel objects and plausibly be developed into control-flow hijack or privilege escalation. When uncertain, the higher severity is appropriate.\nA:H - The same kernel memory corruption can crash or panic the kernel during HID report processing. Even without full exploitation, repeated triggering can cause high availability impact."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/hid/hid-multitouch.c"
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],
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"versions": [
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{
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"version": "6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095",
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"lessThan": "516da3f25cfe18643835af1cf09b0e9ffc36c383",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095",
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"lessThan": "a61163daf8a90b4a7ef154d5fc9c525f665734e3",
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"status": "affected",
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},
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{
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"lessThan": "74c6015375d8b9bc1b1eb79f20636c8e894bcad7",
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"status": "affected",
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},
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{
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"lessThan": "c7a27bb4d0f6573ca0f9c7ef0b63291486239190",
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"status": "affected",
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},
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{
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"lessThan": "6a4acd3e86fe5584050c213d95147eba33856033",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095",
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"lessThan": "7f66fdbc077faed3b52519228d21d81979e92249",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095",
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"lessThan": "2edc92f89eee328b5be5706b5d431bf90669e9c0",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "6d4f5440a3a2bb2e9d0d582bbf98234e9e9bb095",
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"lessThan": "e716edafedad4952fe3a4a273d2e039a84e8681a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "fee906f035f0bd18ff12d84d58766c44a2ab0918",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "4.3.6",
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"lessThan": "4.4",
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"status": "affected",
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"versionType": "semver"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/hid/hid-multitouch.c"
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],
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"versions": [
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{
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"version": "4.4",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.4",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.253",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.203",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.168",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.134",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.81",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.22",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19.12",
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"lessThanOrEqual": "6.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.4",
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"versionEndExcluding": "5.10.253"
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/516da3f25cfe18643835af1cf09b0e9ffc36c383"
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},
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{
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"url": "https://git.kernel.org/stable/c/a61163daf8a90b4a7ef154d5fc9c525f665734e3"
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},
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{
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"url": "https://git.kernel.org/stable/c/74c6015375d8b9bc1b1eb79f20636c8e894bcad7"
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},
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{
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"url": "https://git.kernel.org/stable/c/c7a27bb4d0f6573ca0f9c7ef0b63291486239190"
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},
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{
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"url": "https://git.kernel.org/stable/c/6a4acd3e86fe5584050c213d95147eba33856033"
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},
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{
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"url": "https://git.kernel.org/stable/c/7f66fdbc077faed3b52519228d21d81979e92249"
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},
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{
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"url": "https://git.kernel.org/stable/c/2edc92f89eee328b5be5706b5d431bf90669e9c0"
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},
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{
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"url": "https://git.kernel.org/stable/c/e716edafedad4952fe3a4a273d2e039a84e8681a"
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}
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],
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"title": "HID: multitouch: Check to ensure report responses match the request",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-43047",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:13:55.670356Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-20",
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"description": "CWE-20 Improper Input Validation"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T19:06:11.151Z"
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}
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}
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]
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}
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} |