{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63963","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T07:54:57.024Z","datePublished":"2026-07-19T14:55:52.388Z","dateUpdated":"2026-07-20T06:41:43.925Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-07-20T06:41:43.925Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: tcpm: validate VDO count in Discover Identity ACK handlers\n\nProperly validate the count passed from a device when calling\nsvdm_consume_identity() or svdm_consume_identity_sop_prime() as the\ndevice-controlled value could index off of the static arrays, which\ncould leak data."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/tcpm/tcpm.c"],"versions":[{"version":"f0690a25a140b853b1842fa80faf828601bb47e8","lessThan":"569f7971542eb10025d8a0989b83f28a29d8ba20","status":"affected","versionType":"git"},{"version":"f0690a25a140b853b1842fa80faf828601bb47e8","lessThan":"f9d787fbe83127105e42088cca40e5118db0d810","status":"affected","versionType":"git"},{"version":"f0690a25a140b853b1842fa80faf828601bb47e8","lessThan":"ed8649f3822e211d025bcab5158af6f8a38c8705","status":"affected","versionType":"git"},{"version":"f0690a25a140b853b1842fa80faf828601bb47e8","lessThan":"8fbc349e8383125dd2d8de1c1e926279d398ab17","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/usb/typec/tcpm/tcpm.c"],"versions":[{"version":"4.12","status":"affected"},{"version":"0","lessThan":"4.12","status":"unaffected","versionType":"semver"},{"version":"6.12.93","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.35","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.0.12","lessThanOrEqual":"7.0.*","status":"unaffected","versionType":"semver"},{"version":"7.1","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":"6.12.93"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"6.18.35"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"7.0.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.12","versionEndExcluding":"7.1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/569f7971542eb10025d8a0989b83f28a29d8ba20"},{"url":"https://git.kernel.org/stable/c/f9d787fbe83127105e42088cca40e5118db0d810"},{"url":"https://git.kernel.org/stable/c/ed8649f3822e211d025bcab5158af6f8a38c8705"},{"url":"https://git.kernel.org/stable/c/8fbc349e8383125dd2d8de1c1e926279d398ab17"}],"title":"usb: typec: tcpm: validate VDO count in Discover Identity ACK handlers","x_generator":{"engine":"bippy-1.2.0"}}}}