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vuln-cve/data/2026/74xxx/CVE-2026-74650.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-74650",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-08-15T05:44:03.923Z",
"datePublished": "2026-08-22T15:32:26.333Z",
"dateUpdated": "2026-11-06T17:05:49.687Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-27T12:39:54.006Z"
},
"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."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/staging/rtl8723bs/core/rtw_wlan_util.c"
],
"versions": [
{
"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
"lessThan": "5df2fd06567df5f178c8faae0bdaefd203618d21",
"status": "affected",
"versionType": "git"
},
{
"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
"lessThan": "6cdca4c8b64c15a3ab9ad7a85f482e9519eadf93",
"status": "affected",
"versionType": "git"
},
{
"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
"lessThan": "2bee6f7a0f0125238951e31da2e96d06fe359043",
"status": "affected",
"versionType": "git"
},
{
"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
"lessThan": "1158b9931207392d6dd136aa0c4be18893b50fa1",
"status": "affected",
"versionType": "git"
},
{
"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
"lessThan": "ce2399717de242344880044b91a20a712644fdfb",
"status": "affected",
"versionType": "git"
},
{
"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
"lessThan": "e5b7610008f4e6a80c8b071aa77ddbd5e17ea472",
"status": "affected",
"versionType": "git"
},
{
"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
"lessThan": "e429c6dfd5d2324cd866daaf4c29d5cfe4dea0e4",
"status": "affected",
"versionType": "git"
},
{
"version": "554c0a3abf216c991c5ebddcdb2c08689ecd290b",
"lessThan": "ae21407350151bddfd4fea7aa39bd0643c0ca9d3",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/staging/rtl8723bs/core/rtw_wlan_util.c"
],
"versions": [
{
"version": "4.12",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.12",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.267",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.216",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.183",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.152",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.104",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.45",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.1.9",
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.2",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.12",
"versionEndExcluding": "5.10.267"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.12",
"versionEndExcluding": "5.15.216"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.12",
"versionEndExcluding": "6.1.183"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.12",
"versionEndExcluding": "6.6.152"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.12",
"versionEndExcluding": "6.12.104"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.12",
"versionEndExcluding": "6.18.45"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.12",
"versionEndExcluding": "7.1.9"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.12",
"versionEndExcluding": "7.2"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/5df2fd06567df5f178c8faae0bdaefd203618d21"
},
{
"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"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2026-74650",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-11-06T17:00:21.541441Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-06T17:05:49.687Z"
}
}
]
}
}