{"api_version":"1","generated_at":"2026-06-27T00:17:47+00:00","cve":"CVE-2026-53317","urls":{"html":"https://cve.report/CVE-2026-53317","api":"https://cve.report/api/cve/CVE-2026-53317.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53317","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53317"},"summary":{"title":"wifi: mt76: mt7921: Place upper limit on station AID","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: Place upper limit on station AID\n\nAny station configured with an AID over 20 causes a firmware crash.\nThis situation occurred in our testing using an AP interface on 7922\nhardware, with a modified hostapd, sourced from Mediatek's OpenWRT\nfeeds.\n\nIn stock hostapd, station AIDs begin counting at 1, and this\nconfiguration is prevented with an upper limit on associated stations.\nHowever, the modified hostapd began allocation at 65, which caused the\nfirmware to crash. This fix does not allow these AIDs to work, but will\nprevent the firmware crash.\n\nThis crash was only seen on IFTYPE_AP interfaces, and the fix does not\nappear to have an effect on IFTYPE_STATION behavior.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-26 20:17:25","updated_at":"2026-06-26 20:17:25"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/1a4b802afe15c5b33b2dcb37a594aba2fa215d52","name":"https://git.kernel.org/stable/c/1a4b802afe15c5b33b2dcb37a594aba2fa215d52","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4d0bf21e3e20619d51d06c0c36207aabab8b712c","name":"https://git.kernel.org/stable/c/4d0bf21e3e20619d51d06c0c36207aabab8b712c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/35835ff71e6e618155578b8e3905597edd5f601c","name":"https://git.kernel.org/stable/c/35835ff71e6e618155578b8e3905597edd5f601c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952","name":"https://git.kernel.org/stable/c/6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53317","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53317","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5c14a5f944b91371961548b1907802f74a4d2e5c 6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5c14a5f944b91371961548b1907802f74a4d2e5c 35835ff71e6e618155578b8e3905597edd5f601c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5c14a5f944b91371961548b1907802f74a4d2e5c 1a4b802afe15c5b33b2dcb37a594aba2fa215d52 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5c14a5f944b91371961548b1907802f74a4d2e5c 4d0bf21e3e20619d51d06c0c36207aabab8b712c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.91 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.33 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.10 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":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/wireless/mediatek/mt76/mt7921/main.c","drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952","status":"affected","version":"5c14a5f944b91371961548b1907802f74a4d2e5c","versionType":"git"},{"lessThan":"35835ff71e6e618155578b8e3905597edd5f601c","status":"affected","version":"5c14a5f944b91371961548b1907802f74a4d2e5c","versionType":"git"},{"lessThan":"1a4b802afe15c5b33b2dcb37a594aba2fa215d52","status":"affected","version":"5c14a5f944b91371961548b1907802f74a4d2e5c","versionType":"git"},{"lessThan":"4d0bf21e3e20619d51d06c0c36207aabab8b712c","status":"affected","version":"5c14a5f944b91371961548b1907802f74a4d2e5c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/wireless/mediatek/mt76/mt7921/main.c","drivers/net/wireless/mediatek/mt76/mt7921/mt7921.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.91","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","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":"6.12.91","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.33","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.10","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"5.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: Place upper limit on station AID\n\nAny station configured with an AID over 20 causes a firmware crash.\nThis situation occurred in our testing using an AP interface on 7922\nhardware, with a modified hostapd, sourced from Mediatek's OpenWRT\nfeeds.\n\nIn stock hostapd, station AIDs begin counting at 1, and this\nconfiguration is prevented with an upper limit on associated stations.\nHowever, the modified hostapd began allocation at 65, which caused the\nfirmware to crash. This fix does not allow these AIDs to work, but will\nprevent the firmware crash.\n\nThis crash was only seen on IFTYPE_AP interfaces, and the fix does not\nappear to have an effect on IFTYPE_STATION behavior."}],"providerMetadata":{"dateUpdated":"2026-06-26T19:41:09.868Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/6dbe70f9ef14d8ac1c24bf19fd9510978a3ab952"},{"url":"https://git.kernel.org/stable/c/35835ff71e6e618155578b8e3905597edd5f601c"},{"url":"https://git.kernel.org/stable/c/1a4b802afe15c5b33b2dcb37a594aba2fa215d52"},{"url":"https://git.kernel.org/stable/c/4d0bf21e3e20619d51d06c0c36207aabab8b712c"}],"title":"wifi: mt76: mt7921: Place upper limit on station AID","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53317","datePublished":"2026-06-26T19:41:09.868Z","dateReserved":"2026-06-09T07:44:35.398Z","dateUpdated":"2026-06-26T19:41:09.868Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-26 20:17:25","lastModifiedDate":"2026-06-26 20:17:25","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53317","Ordinal":"1","Title":"wifi: mt76: mt7921: Place upper limit on station AID","CVE":"CVE-2026-53317","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53317","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: Place upper limit on station AID\n\nAny station configured with an AID over 20 causes a firmware crash.\nThis situation occurred in our testing using an AP interface on 7922\nhardware, with a modified hostapd, sourced from Mediatek's OpenWRT\nfeeds.\n\nIn stock hostapd, station AIDs begin counting at 1, and this\nconfiguration is prevented with an upper limit on associated stations.\nHowever, the modified hostapd began allocation at 65, which caused the\nfirmware to crash. This fix does not allow these AIDs to work, but will\nprevent the firmware crash.\n\nThis crash was only seen on IFTYPE_AP interfaces, and the fix does not\nappear to have an effect on IFTYPE_STATION behavior.","Type":"Description","Title":"wifi: mt76: mt7921: Place upper limit on station AID"}]}}}