{"api_version":"1","generated_at":"2026-08-29T12:12:23+00:00","cve":"CVE-2026-80722","urls":{"html":"https://cve.report/CVE-2026-80722","api":"https://cve.report/api/cve/CVE-2026-80722.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-80722","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-80722"},"summary":{"title":"wifi: mac80211: validate individual TWT params before driver setup","description":"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]","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-28 08:16:58","updated_at":"2026-08-29 07:16:54"},"problem_types":[],"metrics":[{"version":"3.1","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","type":"Secondary","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"8.8","severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916","name":"https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b","name":"https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a","name":"https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de","name":"https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326","name":"https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a","name":"https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09","name":"https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80722","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80722","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 92fcd0f30dc8e51f252589b082d46851d295cc1a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 09d60d1f72e6598241490eb6c4e97245af895c09 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 ff558072d199c1d641d1561da622e67f780514de git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected f5a4c24e689f54e66201f04d343bdd2e8a1d7923 ade9e2f0f7f4d3089600ac2af8ef0b91746f923b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.103 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.44 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.8 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"80722","cve":"CVE-2026-80722","epss":"0.001610000","percentile":"0.055150000","score_date":"2026-08-28","updated_at":"2026-08-29 00:12:17"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/s1g.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"92fcd0f30dc8e51f252589b082d46851d295cc1a","status":"affected","version":"f5a4c24e689f54e66201f04d343bdd2e8a1d7923","versionType":"git"},{"lessThan":"09d60d1f72e6598241490eb6c4e97245af895c09","status":"affected","version":"f5a4c24e689f54e66201f04d343bdd2e8a1d7923","versionType":"git"},{"lessThan":"ff558072d199c1d641d1561da622e67f780514de","status":"affected","version":"f5a4c24e689f54e66201f04d343bdd2e8a1d7923","versionType":"git"},{"lessThan":"ade9e2f0f7f4d3089600ac2af8ef0b91746f923b","status":"affected","version":"f5a4c24e689f54e66201f04d343bdd2e8a1d7923","versionType":"git"},{"lessThan":"b558e07708d886acfcf4b0391ed7a8546e81d326","status":"affected","version":"f5a4c24e689f54e66201f04d343bdd2e8a1d7923","versionType":"git"},{"lessThan":"47fb04c3826e1f90271d405523043d6708b9072a","status":"affected","version":"f5a4c24e689f54e66201f04d343bdd2e8a1d7923","versionType":"git"},{"lessThan":"0502d5077e419427d80f4d46ba95d0067f5fb916","status":"affected","version":"f5a4c24e689f54e66201f04d343bdd2e8a1d7923","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/s1g.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.216","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.151","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.103","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.44","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.8","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.216","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.151","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.103","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.44","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.8","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"5.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","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]"}],"metrics":[{"cvssV3_1":{"baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"scenarios":[{"lang":"en","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."}]}],"providerMetadata":{"dateUpdated":"2026-08-29T06:22:38.281Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/92fcd0f30dc8e51f252589b082d46851d295cc1a"},{"url":"https://git.kernel.org/stable/c/09d60d1f72e6598241490eb6c4e97245af895c09"},{"url":"https://git.kernel.org/stable/c/ff558072d199c1d641d1561da622e67f780514de"},{"url":"https://git.kernel.org/stable/c/ade9e2f0f7f4d3089600ac2af8ef0b91746f923b"},{"url":"https://git.kernel.org/stable/c/b558e07708d886acfcf4b0391ed7a8546e81d326"},{"url":"https://git.kernel.org/stable/c/47fb04c3826e1f90271d405523043d6708b9072a"},{"url":"https://git.kernel.org/stable/c/0502d5077e419427d80f4d46ba95d0067f5fb916"}],"title":"wifi: mac80211: validate individual TWT params before driver setup","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-80722","datePublished":"2026-08-28T06:53:17.886Z","dateReserved":"2026-08-26T14:34:25.788Z","dateUpdated":"2026-08-29T06:22:38.281Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-28 08:16:58","lastModifiedDate":"2026-08-29 07:16:54","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:H/A:H","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"ADJACENT_NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":2.8,"impactScore":5.9}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"80722","Ordinal":"1","Title":"wifi: mac80211: validate individual TWT params before driver set","CVE":"CVE-2026-80722","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"80722","Ordinal":"1","NoteData":"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]","Type":"Description","Title":"wifi: mac80211: validate individual TWT params before driver set"}]}}}