{"id":"CVE-2026-74340","revision":"b8249da9a08a42c3a5e51be5f214bec3","records":[{"revision":"b8249da9a08a42c3a5e51be5f214bec3","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74340","aliases":[],"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":0,"publishedAt":"2026-08-15T05:58:30.558+00:00","modifiedAt":"2026-10-16T18:55:34.097+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/ath/wcn36xx/smd.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"43efa3c0f241e04862be8e6a68ff765d36cde1ba\",\n                            \"lessThan\": \"22b0b8572a64362531dd0ed499b75e16282aeb2b\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"43efa3c0f241e04862be8e6a68ff765d36cde1ba\",\n                            \"lessThan\": \"3cf92b44c4fb88a5e8de8733a4494c0956606bca\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"43efa3c0f241e04862be8e6a68ff765d36cde1ba\",\n                            \"lessThan\": \"0907c06dccae9e3c8d5a68eb9014beec73a36e79\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"43efa3c0f241e04862be8e6a68ff765d36cde1ba\",\n                            \"lessThan\": \"64228dfc4247aca178c01e5a37af7d8dcc7a6089\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"43efa3c0f241e04862be8e6a68ff765d36cde1ba\",\n                            \"lessThan\": \"23d210877968657bd07e1a517e0b516db20a1d80\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"43efa3c0f241e04862be8e6a68ff765d36cde1ba\",\n                            \"lessThan\": \"f03782f7f41f2afee5076a1ef08ced5649218771\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"43efa3c0f241e04862be8e6a68ff765d36cde1ba\",\n                            \"lessThan\": \"f987efff29a5fe45320ea5991c9d5cb98b676953\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"43efa3c0f241e04862be8e6a68ff765d36cde1ba\",\n                            \"lessThan\": \"df2187acfca6c6cca372c5d35f42394d9c270b09\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/net/wireless/ath/wcn36xx/smd.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.261\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.212\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.178\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.97\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":8.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/22b0b8572a64362531dd0ed499b75e16282aeb2b","https://git.kernel.org/stable/c/3cf92b44c4fb88a5e8de8733a4494c0956606bca","https://git.kernel.org/stable/c/0907c06dccae9e3c8d5a68eb9014beec73a36e79","https://git.kernel.org/stable/c/64228dfc4247aca178c01e5a37af7d8dcc7a6089","https://git.kernel.org/stable/c/23d210877968657bd07e1a517e0b516db20a1d80","https://git.kernel.org/stable/c/f03782f7f41f2afee5076a1ef08ced5649218771","https://git.kernel.org/stable/c/f987efff29a5fe45320ea5991c9d5cb98b676953","https://git.kernel.org/stable/c/df2187acfca6c6cca372c5d35f42394d9c270b09"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74340","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74340","identifiers":["CVE-2026-74340"]},"retained":false,"historicalAffected":[]}],"coverage":[]}