{"api_version":"1","generated_at":"2026-05-13T08:51:24+00:00","cve":"CVE-2026-43436","urls":{"html":"https://cve.report/CVE-2026-43436","api":"https://cve.report/api/cve/CVE-2026-43436.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43436","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43436"},"summary":{"title":"ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces\n\nThe Scarlett2 mixer quirk in USB-audio driver may hit a NULL\ndereference when a malformed USB descriptor is passed, since it\nassumes the presence of an endpoint in the parsed interface in\nscarlett2_find_fc_interface(), as reported by fuzzer.\n\nFor avoiding the NULL dereference, just add the sanity check of\nbNumEndpoints and skip the invalid interface.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-08 15:16:55","updated_at":"2026-05-12 14:10:27"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947","name":"https://git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba","name":"https://git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9","name":"https://git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172a","name":"https://git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264","name":"https://git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6","name":"https://git.kernel.org/stable/c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43436","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43436","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6c0a2078134aba6a77291554035304df9e16b85c b014cc945baba75816cda0cf8934be87c9ed4947 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6c0a2078134aba6a77291554035304df9e16b85c c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6c0a2078134aba6a77291554035304df9e16b85c b267255c15d2a5b90c4e926146aa155e5161e264 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6c0a2078134aba6a77291554035304df9e16b85c 3d542cf3c4c854cdf5d58049771f68926b9eb2b9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6c0a2078134aba6a77291554035304df9e16b85c 3d4f23885e4b90347c9a1d779af6e79a99b5172a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6c0a2078134aba6a77291554035304df9e16b85c df1d8abf36ca3681c21a6809eaa9a1e01ef897a6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.14","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.14 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.167 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.130 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.78 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.19 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.9 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"43436","cve":"CVE-2026-43436","epss":"0.000280000","percentile":"0.080650000","score_date":"2026-05-12","updated_at":"2026-05-13 00:11:53"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["sound/usb/mixer_scarlett2.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"b014cc945baba75816cda0cf8934be87c9ed4947","status":"affected","version":"6c0a2078134aba6a77291554035304df9e16b85c","versionType":"git"},{"lessThan":"c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba","status":"affected","version":"6c0a2078134aba6a77291554035304df9e16b85c","versionType":"git"},{"lessThan":"b267255c15d2a5b90c4e926146aa155e5161e264","status":"affected","version":"6c0a2078134aba6a77291554035304df9e16b85c","versionType":"git"},{"lessThan":"3d542cf3c4c854cdf5d58049771f68926b9eb2b9","status":"affected","version":"6c0a2078134aba6a77291554035304df9e16b85c","versionType":"git"},{"lessThan":"3d4f23885e4b90347c9a1d779af6e79a99b5172a","status":"affected","version":"6c0a2078134aba6a77291554035304df9e16b85c","versionType":"git"},{"lessThan":"df1d8abf36ca3681c21a6809eaa9a1e01ef897a6","status":"affected","version":"6c0a2078134aba6a77291554035304df9e16b85c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["sound/usb/mixer_scarlett2.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.14"},{"lessThan":"5.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.167","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.130","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.19","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.167","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.130","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.78","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.19","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.9","versionStartIncluding":"5.14","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0","versionStartIncluding":"5.14","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces\n\nThe Scarlett2 mixer quirk in USB-audio driver may hit a NULL\ndereference when a malformed USB descriptor is passed, since it\nassumes the presence of an endpoint in the parsed interface in\nscarlett2_find_fc_interface(), as reported by fuzzer.\n\nFor avoiding the NULL dereference, just add the sanity check of\nbNumEndpoints and skip the invalid interface."}],"providerMetadata":{"dateUpdated":"2026-05-11T22:24:33.336Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947"},{"url":"https://git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba"},{"url":"https://git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264"},{"url":"https://git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9"},{"url":"https://git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172a"},{"url":"https://git.kernel.org/stable/c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6"}],"title":"ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43436","datePublished":"2026-05-08T14:22:06.632Z","dateReserved":"2026-05-01T14:12:56.009Z","dateUpdated":"2026-05-11T22:24:33.336Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-08 15:16:55","lastModifiedDate":"2026-05-12 14:10:27","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43436","Ordinal":"1","Title":"ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mix","CVE":"CVE-2026-43436","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43436","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces\n\nThe Scarlett2 mixer quirk in USB-audio driver may hit a NULL\ndereference when a malformed USB descriptor is passed, since it\nassumes the presence of an endpoint in the parsed interface in\nscarlett2_find_fc_interface(), as reported by fuzzer.\n\nFor avoiding the NULL dereference, just add the sanity check of\nbNumEndpoints and skip the invalid interface.","Type":"Description","Title":"ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mix"}]}}}