{"api_version":"1","generated_at":"2026-07-27T03:09:22+00:00","cve":"CVE-2026-64446","urls":{"html":"https://cve.report/CVE-2026-64446","api":"https://cve.report/api/cve/CVE-2026-64446.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-64446","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64446"},"summary":{"title":"staging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie()\n\nsupplicant_ie is a 256-byte array in struct security_priv. The WPA and\nWPA2 IE copy paths use:\n\n    memcpy(padapter->securitypriv.supplicant_ie, &pwpa[0], wpa_ielen + 2);\n\nwhere wpa_ielen is the raw IE length field (u8, 0-255). When a local user\nsupplies a connect request via nl80211 with a crafted WPA IE of length 255,\nwpa_ielen + 2 equals 257, overflowing the 256-byte buffer by one byte into\nthe adjacent last_mic_err_time field.\n\nrtw_parse_wpa_ie() does not prevent this: its length consistency check\ncompares *(wpa_ie+1) against (u8)(wpa_ie_len-2), which is (u8)(255) == 255\nwhen wpa_ie_len = 257, so the check passes silently.\n\nAdd explicit bounds checks for both the WPA and WPA2 paths before the\nmemcpy, rejecting any IE whose total size (wpa_ielen + 2) exceeds the\nsupplicant_ie buffer.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-25 10:17:29","updated_at":"2026-07-25 10:17:29"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/b9c4bf133c3c47e23baf4f5403b98a953bf58606","name":"https://git.kernel.org/stable/c/b9c4bf133c3c47e23baf4f5403b98a953bf58606","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/46f66c16a95191d9aca07a72ae6b1252a244e26c","name":"https://git.kernel.org/stable/c/46f66c16a95191d9aca07a72ae6b1252a244e26c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2131621986c62c86109ce4d84cf73a73757eb8a6","name":"https://git.kernel.org/stable/c/2131621986c62c86109ce4d84cf73a73757eb8a6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a94a643a80a84ceb8139061c3d6bf988d75e45a5","name":"https://git.kernel.org/stable/c/a94a643a80a84ceb8139061c3d6bf988d75e45a5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5a752a616e756844388a1a45404db9fc29fec655","name":"https://git.kernel.org/stable/c/5a752a616e756844388a1a45404db9fc29fec655","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6f20d7b0ee47c470734a69379b0fc6647c519603","name":"https://git.kernel.org/stable/c/6f20d7b0ee47c470734a69379b0fc6647c519603","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5d7812360abf3143afcbf5efe4ef242448fa1f28","name":"https://git.kernel.org/stable/c/5d7812360abf3143afcbf5efe4ef242448fa1f28","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/138cd190efd56ab36c9fdd8fef8749d06937f24b","name":"https://git.kernel.org/stable/c/138cd190efd56ab36c9fdd8fef8749d06937f24b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-64446","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64446","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b a94a643a80a84ceb8139061c3d6bf988d75e45a5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b 2131621986c62c86109ce4d84cf73a73757eb8a6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b 6f20d7b0ee47c470734a69379b0fc6647c519603 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b 5d7812360abf3143afcbf5efe4ef242448fa1f28 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.212 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.178 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.145 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.96 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.39 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.4 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"64446","cve":"CVE-2026-64446","epss":"0.001950000","percentile":"0.094620000","score_date":"2026-07-26","updated_at":"2026-07-27 00:02:02"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"a94a643a80a84ceb8139061c3d6bf988d75e45a5","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"2131621986c62c86109ce4d84cf73a73757eb8a6","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"6f20d7b0ee47c470734a69379b0fc6647c519603","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"5d7812360abf3143afcbf5efe4ef242448fa1f28","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"46f66c16a95191d9aca07a72ae6b1252a244e26c","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"b9c4bf133c3c47e23baf4f5403b98a953bf58606","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"138cd190efd56ab36c9fdd8fef8749d06937f24b","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"5a752a616e756844388a1a45404db9fc29fec655","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.12"},{"lessThan":"4.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.261","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.212","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.178","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.145","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.96","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.39","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.261","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.212","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.178","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.145","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.96","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.39","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.4","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc3","versionStartIncluding":"4.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie()\n\nsupplicant_ie is a 256-byte array in struct security_priv. The WPA and\nWPA2 IE copy paths use:\n\n    memcpy(padapter->securitypriv.supplicant_ie, &pwpa[0], wpa_ielen + 2);\n\nwhere wpa_ielen is the raw IE length field (u8, 0-255). When a local user\nsupplies a connect request via nl80211 with a crafted WPA IE of length 255,\nwpa_ielen + 2 equals 257, overflowing the 256-byte buffer by one byte into\nthe adjacent last_mic_err_time field.\n\nrtw_parse_wpa_ie() does not prevent this: its length consistency check\ncompares *(wpa_ie+1) against (u8)(wpa_ie_len-2), which is (u8)(255) == 255\nwhen wpa_ie_len = 257, so the check passes silently.\n\nAdd explicit bounds checks for both the WPA and WPA2 paths before the\nmemcpy, rejecting any IE whose total size (wpa_ielen + 2) exceeds the\nsupplicant_ie buffer."}],"providerMetadata":{"dateUpdated":"2026-07-25T08:51:17.402Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/a94a643a80a84ceb8139061c3d6bf988d75e45a5"},{"url":"https://git.kernel.org/stable/c/2131621986c62c86109ce4d84cf73a73757eb8a6"},{"url":"https://git.kernel.org/stable/c/6f20d7b0ee47c470734a69379b0fc6647c519603"},{"url":"https://git.kernel.org/stable/c/5d7812360abf3143afcbf5efe4ef242448fa1f28"},{"url":"https://git.kernel.org/stable/c/46f66c16a95191d9aca07a72ae6b1252a244e26c"},{"url":"https://git.kernel.org/stable/c/b9c4bf133c3c47e23baf4f5403b98a953bf58606"},{"url":"https://git.kernel.org/stable/c/138cd190efd56ab36c9fdd8fef8749d06937f24b"},{"url":"https://git.kernel.org/stable/c/5a752a616e756844388a1a45404db9fc29fec655"}],"title":"staging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-64446","datePublished":"2026-07-25T08:51:17.402Z","dateReserved":"2026-07-19T15:36:31.788Z","dateUpdated":"2026-07-25T08:51:17.402Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-25 10:17:29","lastModifiedDate":"2026-07-25 10:17:29","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"64446","Ordinal":"1","Title":"staging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set","CVE":"CVE-2026-64446","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"64446","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie()\n\nsupplicant_ie is a 256-byte array in struct security_priv. The WPA and\nWPA2 IE copy paths use:\n\n    memcpy(padapter->securitypriv.supplicant_ie, &pwpa[0], wpa_ielen + 2);\n\nwhere wpa_ielen is the raw IE length field (u8, 0-255). When a local user\nsupplies a connect request via nl80211 with a crafted WPA IE of length 255,\nwpa_ielen + 2 equals 257, overflowing the 256-byte buffer by one byte into\nthe adjacent last_mic_err_time field.\n\nrtw_parse_wpa_ie() does not prevent this: its length consistency check\ncompares *(wpa_ie+1) against (u8)(wpa_ie_len-2), which is (u8)(255) == 255\nwhen wpa_ie_len = 257, so the check passes silently.\n\nAdd explicit bounds checks for both the WPA and WPA2 paths before the\nmemcpy, rejecting any IE whose total size (wpa_ielen + 2) exceeds the\nsupplicant_ie buffer.","Type":"Description","Title":"staging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set"}]}}}