277 lines
15 KiB
JSON
277 lines
15 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-2026-80722",
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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": "2026-08-26T14:34:25.788Z",
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"datePublished": "2026-08-28T06:53:17.886Z",
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"dateUpdated": "2026-10-16T19:26:35.418Z"
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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": "2026-08-29T06:22:38.281Z"
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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\nwifi: mac80211: validate individual TWT params before driver setup\n\nieee80211_process_rx_twt_action() only partially validates a received\nS1G TWT setup frame before queueing it.\n\nAn individual agreement can therefore reach ieee80211_s1g_rx_twt_setup()\nwith twt->length too short for the full struct ieee80211_twt_params.\n\nThe individual path passes twt to drv_add_twt_setup(). Both the tracepoint\nand the driver callback consume the complete parameters block, not merely\nreq_type. Do not pass a short individual agreement to the driver.\nBroadcast agreements remain unchanged because they are rejected locally\nafter accessing only req_type.\n\n[edit commit message to not overclaim lack of validation nor\n understate driver impact]"
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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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 8.8,
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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:A - Malformed S1G TWT setup action frames reach mac80211 via normal WiFi RX (driver -> ieee80211_rx_h_action -> ieee80211_process_rx_twt_action -> ieee80211_s1g_rx_twt_setup); an adjacent attacker within radio range sends crafted 802.11 management frames to a vulnerable AP.\nAC:L - The attacker fully controls the TWT element length and payload; ieee80211_process_rx_twt_action() only validates two bytes of req_type before queueing, so a short individual agreement reliably reaches drv_add_twt_setup() without races or victim-specific timing.\nPR:N - No Linux privileges on the victim AP are required; exploitation needs only normal 802.11 association as a WiFi client to an S1G AP with twt_responder enabled and a driver implementing add_twt_setup (e.g. MediaTek mt7915/mt7996).\nUI:N - No deliberate victim action is needed beyond operating an S1G AP that accepts associated stations; the attacker directly injects the malformed TWT setup frame and mac80211 processes it automatically on receive.\nS:U - Impact is kernel/driver heap memory corruption on the AP host within the same security authority; it does not cross VM, IOMMU, or sandbox boundaries (standard kernel compromise scope).\nC:H - drv_add_twt_setup(), its tracepoint, and driver callbacks read the full ieee80211_twt_params (twt, min_twt_dur, mantissa, channel) beyond the validated skb bounds, causing out-of-bounds reads of adjacent skb/heap memory that can disclose kernel data.\nI:H - MediaTek add_twt_setup() handlers write twt_agrt fields (req_type, min_twt_dur, twt) past the undersized params block into skb tail/heap memory, providing out-of-bounds write primitives exploitable for further memory corruption or code execution.\nA:H - Out-of-bounds access in mac80211/driver TWT setup can kernel-oops the AP or hang/crash WiFi firmware when corrupted parameters are programmed into hardware TWT state from attacker-controlled short frames."
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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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"net/mac80211/s1g.c"
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],
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"versions": [
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{
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"version": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
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"lessThan": "92fcd0f30dc8e51f252589b082d46851d295cc1a",
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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": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
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"lessThan": "09d60d1f72e6598241490eb6c4e97245af895c09",
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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": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
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"lessThan": "ff558072d199c1d641d1561da622e67f780514de",
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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": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
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"lessThan": "ade9e2f0f7f4d3089600ac2af8ef0b91746f923b",
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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": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
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"lessThan": "b558e07708d886acfcf4b0391ed7a8546e81d326",
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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": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
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"lessThan": "47fb04c3826e1f90271d405523043d6708b9072a",
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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": "f5a4c24e689f54e66201f04d343bdd2e8a1d7923",
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"lessThan": "0502d5077e419427d80f4d46ba95d0067f5fb916",
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"status": "affected",
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"versionType": "git"
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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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"net/mac80211/s1g.c"
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],
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"versions": [
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{
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"version": "5.15",
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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": "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": "5.15.216",
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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": "6.1.183",
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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": "6.6.151",
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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": "6.12.103",
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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": "6.18.44",
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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": "7.1.8",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.15",
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"versionEndExcluding": "5.15.216"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.15",
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"versionEndExcluding": "6.1.183"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.15",
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"versionEndExcluding": "7.2"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a"
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},
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{
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"url": "https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09"
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},
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{
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"url": "https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de"
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},
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{
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"url": "https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b"
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},
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{
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"url": "https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326"
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},
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{
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"url": "https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a"
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},
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{
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"url": "https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916"
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}
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],
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"title": "wifi: mac80211: validate individual TWT params before driver setup",
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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-2026-80722",
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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": "2026-10-16T19:20:57.406511Z"
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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": "2026-10-16T19:26:35.418Z"
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}
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}
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]
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}
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} |