{"api_version":"1","generated_at":"2026-08-15T10:57:59+00:00","cve":"CVE-2026-74340","urls":{"html":"https://cve.report/CVE-2026-74340","api":"https://cve.report/api/cve/CVE-2026-74340.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74340","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74340"},"summary":{"title":"wifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INFO indication","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INFO indication\n\nThe firmware-controlled rsp->count field is used as the loop bound for\nindexing into the flexible rsp->regs[] array without validation against\nthe message length. A count exceeding the actual data causes out-of-\nbounds reads from the heap-allocated message buffer.\n\nAdd a check that count fits within the received message.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:34","updated_at":"2026-08-15 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Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74340","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 43efa3c0f241e04862be8e6a68ff765d36cde1ba 22b0b8572a64362531dd0ed499b75e16282aeb2b git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 43efa3c0f241e04862be8e6a68ff765d36cde1ba 3cf92b44c4fb88a5e8de8733a4494c0956606bca git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 43efa3c0f241e04862be8e6a68ff765d36cde1ba 0907c06dccae9e3c8d5a68eb9014beec73a36e79 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 43efa3c0f241e04862be8e6a68ff765d36cde1ba 64228dfc4247aca178c01e5a37af7d8dcc7a6089 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INFO indication\n\nThe firmware-controlled rsp->count field is used as the loop bound for\nindexing into the flexible rsp->regs[] array without validation against\nthe message length. A count exceeding the actual data causes out-of-\nbounds reads from the heap-allocated message buffer.\n\nAdd a check that count fits within the received message."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:58:30.558Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/22b0b8572a64362531dd0ed499b75e16282aeb2b"},{"url":"https://git.kernel.org/stable/c/3cf92b44c4fb88a5e8de8733a4494c0956606bca"},{"url":"https://git.kernel.org/stable/c/0907c06dccae9e3c8d5a68eb9014beec73a36e79"},{"url":"https://git.kernel.org/stable/c/64228dfc4247aca178c01e5a37af7d8dcc7a6089"},{"url":"https://git.kernel.org/stable/c/23d210877968657bd07e1a517e0b516db20a1d80"},{"url":"https://git.kernel.org/stable/c/f03782f7f41f2afee5076a1ef08ced5649218771"},{"url":"https://git.kernel.org/stable/c/f987efff29a5fe45320ea5991c9d5cb98b676953"},{"url":"https://git.kernel.org/stable/c/df2187acfca6c6cca372c5d35f42394d9c270b09"}],"title":"wifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INFO indication","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74340","datePublished":"2026-08-15T05:58:30.558Z","dateReserved":"2026-08-15T05:44:03.885Z","dateUpdated":"2026-08-15T05:58:30.558Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:34","lastModifiedDate":"2026-08-15 06:22:34","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74340","Ordinal":"1","Title":"wifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INF","CVE":"CVE-2026-74340","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74340","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INFO indication\n\nThe firmware-controlled rsp->count field is used as the loop bound for\nindexing into the flexible rsp->regs[] array without validation against\nthe message length. A count exceeding the actual data causes out-of-\nbounds reads from the heap-allocated message buffer.\n\nAdd a check that count fits within the received message.","Type":"Description","Title":"wifi: wcn36xx: fix OOB read from firmware count in PRINT_REG_INF"}]}}}