{"id":"CVE-2026-64536","revision":null,"records":[{"revision":"4f43b0e76cc2445592515424484b323f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-64536","aliases":[],"title":"staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop\n\nThe loop in is_ap_in_tkip() iterates over IEs without verifying that\nenough bytes remain before dereferencing the IE header or its payload:\n\n- pIE->element_id and pIE->length are read without checking that\n i + sizeof(*pIE) <= ie_length, so a truncated IE at the end of the\n buffer causes an OOB read.\n\n- For WLAN_EID_VENDOR_SPECIFIC the code compares pIE->data + 12,\n which requires pIE->length >= 16. For WLAN_EID_RSN it compares\n pIE->data + 8, requiring pIE->length >= 12. Neither requirement\n is checked.\n\nAdd the missing IE header and payload bounds checks and guard each\ndata access with an explicit pIE->length minimum, matching the\npattern established in update_beacon_info().","state":0,"publishedAt":"2026-07-27T06:36:04.736+00:00","modifiedAt":"2026-10-19T20:48:39.153+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/staging/rtl8723bs/core/rtw_wlan_util.c\"\n ],\n \"versions\": [\n {\n \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n \"lessThan\": \"ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n \"lessThan\": \"d2055332297e24c63fffda943ef7a5eefc0a6019\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n \"lessThan\": \"6f26cc55affd9d7f88ae2f5d12db4ecf9072c209\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n \"lessThan\": \"204b22c8df115370037248859bf0fa62db73a396\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n \"lessThan\": \"a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n \"lessThan\": \"4380b3860d887a13555ff024a58dfc05b490dfd6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"554c0a3abf216c991c5ebddcdb2c08689ecd290b\",\n \"lessThan\": \"3bf39f711ff27c64be8680a8938bcc5001982e81\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"drivers/staging/rtl8723bs/core/rtw_wlan_util.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.12\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.12\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.212\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.178\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.145\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.96\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.39\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1.4\",\n \"lessThanOrEqual\": \"7.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.2\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":8.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7","https://git.kernel.org/stable/c/d2055332297e24c63fffda943ef7a5eefc0a6019","https://git.kernel.org/stable/c/6f26cc55affd9d7f88ae2f5d12db4ecf9072c209","https://git.kernel.org/stable/c/204b22c8df115370037248859bf0fa62db73a396","https://git.kernel.org/stable/c/a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395","https://git.kernel.org/stable/c/4380b3860d887a13555ff024a58dfc05b490dfd6","https://git.kernel.org/stable/c/3bf39f711ff27c64be8680a8938bcc5001982e81"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-64536","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-64536","identifiers":["CVE-2026-64536"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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