{"api_version":"1","generated_at":"2026-07-24T01:19:42+00:00","cve":"CVE-2026-63961","urls":{"html":"https://cve.report/CVE-2026-63961","api":"https://cve.report/api/cve/CVE-2026-63961.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-63961","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-63961"},"summary":{"title":"usb: typec: altmodes/displayport: validate count before reading Status Update VDO","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: altmodes/displayport: validate count before reading Status Update VDO\n\nA broken/malicious device can send the incorrect count for a status\nupdate VDO, which will cause the kernel to read uninitialized stack data\nand send it off elsewhere.\n\nFix this up by correctly verifying the count for the update object.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-19 16:17:15","updated_at":"2026-07-20 07:16:41"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/74aabe9ea30fdfba924fce9594e6aa69a596a4bb","name":"https://git.kernel.org/stable/c/74aabe9ea30fdfba924fce9594e6aa69a596a4bb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/77a759ec30bc5fb0dd9c867b711d0acfed6c7faa","name":"https://git.kernel.org/stable/c/77a759ec30bc5fb0dd9c867b711d0acfed6c7faa","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8a18f896e667df491331371b55d4ad644dc51d60","name":"https://git.kernel.org/stable/c/8a18f896e667df491331371b55d4ad644dc51d60","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b","name":"https://git.kernel.org/stable/c/b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/70e7045849e954e56dcbf441b6330e66bc996306","name":"https://git.kernel.org/stable/c/70e7045849e954e56dcbf441b6330e66bc996306","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6ffdbcd7a02f3af8fff9b6519830369f574ed44c","name":"https://git.kernel.org/stable/c/6ffdbcd7a02f3af8fff9b6519830369f574ed44c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dd7118c010f324497c275e8fd7a35c9baaa2a00f","name":"https://git.kernel.org/stable/c/dd7118c010f324497c275e8fd7a35c9baaa2a00f","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/64bd6ccc5799f8473d1f37d4d8f53093dfec5c02","name":"https://git.kernel.org/stable/c/64bd6ccc5799f8473d1f37d4d8f53093dfec5c02","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-63961","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63961","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 74aabe9ea30fdfba924fce9594e6aa69a596a4bb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 dd7118c010f324497c275e8fd7a35c9baaa2a00f git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 6ffdbcd7a02f3af8fff9b6519830369f574ed44c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 70e7045849e954e56dcbf441b6330e66bc996306 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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00:13:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/typec/altmodes/displayport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"74aabe9ea30fdfba924fce9594e6aa69a596a4bb","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"dd7118c010f324497c275e8fd7a35c9baaa2a00f","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"6ffdbcd7a02f3af8fff9b6519830369f574ed44c","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"70e7045849e954e56dcbf441b6330e66bc996306","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"64bd6ccc5799f8473d1f37d4d8f53093dfec5c02","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"77a759ec30bc5fb0dd9c867b711d0acfed6c7faa","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"8a18f896e667df491331371b55d4ad644dc51d60","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/typec/altmodes/displayport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.93","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.35","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.12","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.259","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.93","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.35","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.12","versionStartIncluding":"4.19","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"4.19","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: altmodes/displayport: validate count before reading Status Update VDO\n\nA broken/malicious device can send the incorrect count for a status\nupdate VDO, which will cause the kernel to read uninitialized stack data\nand send it off elsewhere.\n\nFix this up by correctly verifying the count for the update object."}],"providerMetadata":{"dateUpdated":"2026-07-20T06:41:41.563Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/74aabe9ea30fdfba924fce9594e6aa69a596a4bb"},{"url":"https://git.kernel.org/stable/c/dd7118c010f324497c275e8fd7a35c9baaa2a00f"},{"url":"https://git.kernel.org/stable/c/6ffdbcd7a02f3af8fff9b6519830369f574ed44c"},{"url":"https://git.kernel.org/stable/c/70e7045849e954e56dcbf441b6330e66bc996306"},{"url":"https://git.kernel.org/stable/c/64bd6ccc5799f8473d1f37d4d8f53093dfec5c02"},{"url":"https://git.kernel.org/stable/c/b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b"},{"url":"https://git.kernel.org/stable/c/77a759ec30bc5fb0dd9c867b711d0acfed6c7faa"},{"url":"https://git.kernel.org/stable/c/8a18f896e667df491331371b55d4ad644dc51d60"}],"title":"usb: typec: altmodes/displayport: validate count before reading Status Update VDO","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-63961","datePublished":"2026-07-19T14:55:50.993Z","dateReserved":"2026-07-19T07:54:57.023Z","dateUpdated":"2026-07-20T06:41:41.563Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-19 16:17:15","lastModifiedDate":"2026-07-20 07:16:41","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"63961","Ordinal":"1","Title":"usb: typec: altmodes/displayport: validate count before reading ","CVE":"CVE-2026-63961","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"63961","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: altmodes/displayport: validate count before reading Status Update VDO\n\nA broken/malicious device can send the incorrect count for a status\nupdate VDO, which will cause the kernel to read uninitialized stack data\nand send it off elsewhere.\n\nFix this up by correctly verifying the count for the update object.","Type":"Description","Title":"usb: typec: altmodes/displayport: validate count before reading "}]}}}