CVE-2026-64536

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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()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "baseScore": 8.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - A nearby malicious WiFi access point can supply crafted beacon or probe-response IEs that reach the vulnerable association path over the air.\nAC:L - The attacker directly controls the malformed IE lengths and contents, and exploitation requires neither a race nor conditions outside the attacker's control.\nPR:N - The vulnerable code executes before WPA credentials are verified; transmitting management frames as a malicious or spoofed AP requires no privileges on the target.\nUI:N - An attacker impersonating a configured AP can trigger the path during automatic connection or reconnection without contemporaneous user action.\nS:U - The vulnerable driver and affected kernel resources belong to the same host security authority, with no demonstrated VM, sandbox, or IOMMU boundary crossing.\nC:H - The unchecked IE-header and fixed-offset comparisons read beyond attacker-declared buffer boundaries into adjacent kernel memory; under the required conservative OOB-read rule, confidentiality impact is high.\nI:N - The flaw performs reads and comparisons only, with no memory write or demonstrated data-modification primitive.\nA:H - Malformed IEs can cause kernel out-of-bounds accesses during association and potentially fault or oops the kernel; a nearby attacker can repeat the exchange."}]}], "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": 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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()."}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "baseScore": 8.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "AV:A - A nearby malicious WiFi access point can supply crafted beacon or probe-response IEs that reach the vulnerable association path over the air.\nAC:L - The attacker directly controls the malformed IE lengths and contents, and exploitation requires neither a race nor conditions outside the attacker's control.\nPR:N - The vulnerable code executes before WPA credentials are verified; transmitting management frames as a malicious or spoofed AP requires no privileges on the target.\nUI:N - An attacker impersonating a configured AP can trigger the path during automatic connection or reconnection without contemporaneous user action.\nS:U - The vulnerable driver and affected kernel resources belong to the same host security authority, with no demonstrated VM, sandbox, or IOMMU boundary crossing.\nC:H - The unchecked IE-header and fixed-offset comparisons read beyond attacker-declared buffer boundaries into adjacent kernel memory; under the required conservative OOB-read rule, confidentiality impact is high.\nI:N - The flaw performs reads and comparisons only, with no memory write or demonstrated data-modification primitive.\nA:H - Malformed IEs can cause kernel out-of-bounds accesses during association and potentially fault or oops the kernel; a nearby attacker can repeat the exchange."}]}], "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": 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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()."}], "id": "CVE-2026-64536", "lastModified": "2026-11-03T18:15:39.353", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "ADJACENT_NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-64536", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-10-16T15:41:58.313988Z", "version": "2.0.3"}}]}, "published": "2026-07-27T08:16:22.890", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/204b22c8df115370037248859bf0fa62db73a396"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3bf39f711ff27c64be8680a8938bcc5001982e81"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4380b3860d887a13555ff024a58dfc05b490dfd6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6f26cc55affd9d7f88ae2f5d12db4ecf9072c209"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d2055332297e24c63fffda943ef7a5eefc0a6019"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{"bugzilla": {"description": "kernel: staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop", "id": "2507403", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507403"}, "csaw": false, "cwe": "CWE-125", "details": ["No description is available for this CVE."], "name": "CVE-2026-64536", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64536\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64536\nhttps://lore.kernel.org/linux-cve-announce/2026072757-CVE-2026-64536-3376@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[554c0a3abf216c991c5ebddcdb2c08689ecd290b,ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[554c0a3abf216c991c5ebddcdb2c08689ecd290b,d2055332297e24c63fffda943ef7a5eefc0a6019)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[554c0a3abf216c991c5ebddcdb2c08689ecd290b,6f26cc55affd9d7f88ae2f5d12db4ecf9072c209)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[554c0a3abf216c991c5ebddcdb2c08689ecd290b,204b22c8df115370037248859bf0fa62db73a396)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[554c0a3abf216c991c5ebddcdb2c08689ecd290b,a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[554c0a3abf216c991c5ebddcdb2c08689ecd290b,4380b3860d887a13555ff024a58dfc05b490dfd6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[554c0a3abf216c991c5ebddcdb2c08689ecd290b,3bf39f711ff27c64be8680a8938bcc5001982e81)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "4.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.212,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.96,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.39,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.4,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-27T09:15:12.141782+00:00", "updated": "2026-08-05T00:15:04.503850+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}