{"schema_version":"1.9.0","id":"CVE-2026-63959","published":"2026-07-19T14:55:49.553Z","modified":"2026-08-31T18:26:04.231056189Z","related":["SUSE-SU-2026:23066-1","SUSE-SU-2026:23068-1","SUSE-SU-2026:23193-1","SUSE-SU-2026:23194-1","SUSE-SU-2026:23221-1","SUSE-SU-2026:23231-1","SUSE-SU-2026:23237-1","SUSE-SU-2026:23241-1","SUSE-SU-2026:23244-1","SUSE-SU-2026:3790-1","SUSE-SU-2026:3810-1","openSUSE-SU-2026:21555-1"],"summary":"usb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpm/tcpci_maxim: validate header NDO against RX_BYTE_CNT\n\nA broken/malicious port can transmit a CRC-valid frame whose header\nadvertises up to seven data objects but whose body carries fewer than\nthat.  Check for this, and rightfully reject the message, instead of\nreading from uninitialized stack memory.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6f413b559f86a2894188e082e389ff95ee428345"},{"fixed":"0af00f1459f5dd757f0d392f8caa38039561ac62"},{"fixed":"dc17721d42e6d89f63572e63add8306a0e15eb3c"},{"fixed":"9b496e3371c04f0a03b7faa5d2442536d00e3998"},{"fixed":"c4ab8e2d4432abb646c5c0687f8dab173da901f9"},{"fixed":"aa2f716327be1818e1cb156da8a2844804aaec2f"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63959.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.10.0"},{"fixed":"6.6.143"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.93"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.35"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.12"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63959.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0af00f1459f5dd757f0d392f8caa38039561ac62"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9b496e3371c04f0a03b7faa5d2442536d00e3998"},{"type":"WEB","url":"https://git.kernel.org/stable/c/aa2f716327be1818e1cb156da8a2844804aaec2f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c4ab8e2d4432abb646c5c0687f8dab173da901f9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dc17721d42e6d89f63572e63add8306a0e15eb3c"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63959.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63959"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63959.json"}}