{"api_version":"1","generated_at":"2026-08-22T21:53:16+00:00","cve":"CVE-2026-74650","urls":{"html":"https://cve.report/CVE-2026-74650","api":"https://cve.report/api/cve/CVE-2026-74650.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74650","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74650"},"summary":{"title":"staging: rtl8723bs: fix OOB read in WMM_param_handler()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB read in WMM_param_handler()\n\nWMM_param_handler() copies a fixed-size WMM parameter element out of a\nreceived information element without checking that the element is long\nenough, causing an out-of-bounds read for a short WMM IE.\n\nThe handler reads sizeof(struct WMM_para_element) (18) bytes at\npIE->data + 6, so it requires pIE->length to be at least 24\n(WLAN_WMM_LEN), but it never validates the length. Two of its three\ncallers reach it after matching only the WMM OUI: OnAssocRsp() in\nrtw_mlme_ext.c matches a 6-byte OUI, and join_cmd_hdl() matches a\n4-byte OUI, before calling the handler. A vendor-specific IE carrying\nthe WMM OUI but a length between 6 and 23, placed in an association\nresponse or in the IE blob handed to join_cmd_hdl(), passes the OUI\ncheck and then makes the memcmp() and memcpy() at pIE->data + 6 read\npast the end of the element. OnAssocRsp() parses a frame received from\nthe AP, so this is reachable from a remote peer.\n\nThe remaining caller in rtw_wlan_util.c already guards the handler with\n\"pIE->length == WLAN_WMM_LEN\". Move the equivalent check into the\nhandler itself so every caller is covered; the sibling IE handlers in\nthe same parsing loop (HT_caps_handler(), HT_info_handler(),\nERP_IE_handler()) likewise bound their accesses by pIE->length.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:38","updated_at":"2026-08-22 16:16:38"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/6cdca4c8b64c15a3ab9ad7a85f482e9519eadf93","name":"https://git.kernel.org/stable/c/6cdca4c8b64c15a3ab9ad7a85f482e9519eadf93","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e429c6dfd5d2324cd866daaf4c29d5cfe4dea0e4","name":"https://git.kernel.org/stable/c/e429c6dfd5d2324cd866daaf4c29d5cfe4dea0e4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ce2399717de242344880044b91a20a712644fdfb","name":"https://git.kernel.org/stable/c/ce2399717de242344880044b91a20a712644fdfb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2bee6f7a0f0125238951e31da2e96d06fe359043","name":"https://git.kernel.org/stable/c/2bee6f7a0f0125238951e31da2e96d06fe359043","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ae21407350151bddfd4fea7aa39bd0643c0ca9d3","name":"https://git.kernel.org/stable/c/ae21407350151bddfd4fea7aa39bd0643c0ca9d3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/1158b9931207392d6dd136aa0c4be18893b50fa1","name":"https://git.kernel.org/stable/c/1158b9931207392d6dd136aa0c4be18893b50fa1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e5b7610008f4e6a80c8b071aa77ddbd5e17ea472","name":"https://git.kernel.org/stable/c/e5b7610008f4e6a80c8b071aa77ddbd5e17ea472","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74650","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74650","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b 6cdca4c8b64c15a3ab9ad7a85f482e9519eadf93 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b 2bee6f7a0f0125238951e31da2e96d06fe359043 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b 1158b9931207392d6dd136aa0c4be18893b50fa1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b ce2399717de242344880044b91a20a712644fdfb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b e5b7610008f4e6a80c8b071aa77ddbd5e17ea472 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b e429c6dfd5d2324cd866daaf4c29d5cfe4dea0e4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 554c0a3abf216c991c5ebddcdb2c08689ecd290b ae21407350151bddfd4fea7aa39bd0643c0ca9d3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 4.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.216 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.152 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.104 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 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":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/staging/rtl8723bs/core/rtw_wlan_util.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6cdca4c8b64c15a3ab9ad7a85f482e9519eadf93","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"2bee6f7a0f0125238951e31da2e96d06fe359043","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"1158b9931207392d6dd136aa0c4be18893b50fa1","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"ce2399717de242344880044b91a20a712644fdfb","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"e5b7610008f4e6a80c8b071aa77ddbd5e17ea472","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"e429c6dfd5d2324cd866daaf4c29d5cfe4dea0e4","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"},{"lessThan":"ae21407350151bddfd4fea7aa39bd0643c0ca9d3","status":"affected","version":"554c0a3abf216c991c5ebddcdb2c08689ecd290b","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/staging/rtl8723bs/core/rtw_wlan_util.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":"5.15.*","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":"6.6.152","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.104","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.45","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","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":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.152","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.104","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.45","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"4.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","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 OOB read in WMM_param_handler()\n\nWMM_param_handler() copies a fixed-size WMM parameter element out of a\nreceived information element without checking that the element is long\nenough, causing an out-of-bounds read for a short WMM IE.\n\nThe handler reads sizeof(struct WMM_para_element) (18) bytes at\npIE->data + 6, so it requires pIE->length to be at least 24\n(WLAN_WMM_LEN), but it never validates the length. Two of its three\ncallers reach it after matching only the WMM OUI: OnAssocRsp() in\nrtw_mlme_ext.c matches a 6-byte OUI, and join_cmd_hdl() matches a\n4-byte OUI, before calling the handler. A vendor-specific IE carrying\nthe WMM OUI but a length between 6 and 23, placed in an association\nresponse or in the IE blob handed to join_cmd_hdl(), passes the OUI\ncheck and then makes the memcmp() and memcpy() at pIE->data + 6 read\npast the end of the element. OnAssocRsp() parses a frame received from\nthe AP, so this is reachable from a remote peer.\n\nThe remaining caller in rtw_wlan_util.c already guards the handler with\n\"pIE->length == WLAN_WMM_LEN\". Move the equivalent check into the\nhandler itself so every caller is covered; the sibling IE handlers in\nthe same parsing loop (HT_caps_handler(), HT_info_handler(),\nERP_IE_handler()) likewise bound their accesses by pIE->length."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:32:26.333Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/6cdca4c8b64c15a3ab9ad7a85f482e9519eadf93"},{"url":"https://git.kernel.org/stable/c/2bee6f7a0f0125238951e31da2e96d06fe359043"},{"url":"https://git.kernel.org/stable/c/1158b9931207392d6dd136aa0c4be18893b50fa1"},{"url":"https://git.kernel.org/stable/c/ce2399717de242344880044b91a20a712644fdfb"},{"url":"https://git.kernel.org/stable/c/e5b7610008f4e6a80c8b071aa77ddbd5e17ea472"},{"url":"https://git.kernel.org/stable/c/e429c6dfd5d2324cd866daaf4c29d5cfe4dea0e4"},{"url":"https://git.kernel.org/stable/c/ae21407350151bddfd4fea7aa39bd0643c0ca9d3"}],"title":"staging: rtl8723bs: fix OOB read in WMM_param_handler()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74650","datePublished":"2026-08-22T15:32:26.333Z","dateReserved":"2026-08-15T05:44:03.923Z","dateUpdated":"2026-08-22T15:32:26.333Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:38","lastModifiedDate":"2026-08-22 16:16:38","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74650","Ordinal":"1","Title":"staging: rtl8723bs: fix OOB read in WMM_param_handler()","CVE":"CVE-2026-74650","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74650","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB read in WMM_param_handler()\n\nWMM_param_handler() copies a fixed-size WMM parameter element out of a\nreceived information element without checking that the element is long\nenough, causing an out-of-bounds read for a short WMM IE.\n\nThe handler reads sizeof(struct WMM_para_element) (18) bytes at\npIE->data + 6, so it requires pIE->length to be at least 24\n(WLAN_WMM_LEN), but it never validates the length. Two of its three\ncallers reach it after matching only the WMM OUI: OnAssocRsp() in\nrtw_mlme_ext.c matches a 6-byte OUI, and join_cmd_hdl() matches a\n4-byte OUI, before calling the handler. A vendor-specific IE carrying\nthe WMM OUI but a length between 6 and 23, placed in an association\nresponse or in the IE blob handed to join_cmd_hdl(), passes the OUI\ncheck and then makes the memcmp() and memcpy() at pIE->data + 6 read\npast the end of the element. OnAssocRsp() parses a frame received from\nthe AP, so this is reachable from a remote peer.\n\nThe remaining caller in rtw_wlan_util.c already guards the handler with\n\"pIE->length == WLAN_WMM_LEN\". Move the equivalent check into the\nhandler itself so every caller is covered; the sibling IE handlers in\nthe same parsing loop (HT_caps_handler(), HT_info_handler(),\nERP_IE_handler()) likewise bound their accesses by pIE->length.","Type":"Description","Title":"staging: rtl8723bs: fix OOB read in WMM_param_handler()"}]}}}