{"id":"CVE-2026-43110","summary":"wifi: brcmfmac: validate bsscfg indices in IF events","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: validate bsscfg indices in IF events\n\nbrcmf_fweh_handle_if_event() validates the firmware-provided interface\nindex before it touches drvr-\u003eiflist[], but it still uses the raw\nbsscfgidx field as an array index without a matching range check.\n\nReject IF events whose bsscfg index does not fit in drvr-\u003eiflist[]\nbefore indexing the interface array.\n\n[add missing wifi prefix]","modified":"2026-06-18T03:57:03.939519212Z","published":"2026-05-06T07:40:37.250Z","related":["ALSA-2026:21556","ALSA-2026:21557","ALSA-2026:26427","ALSA-2026:26428","CGA-9922-fpmg-6g77","SUSE-SU-2026:2068-1","SUSE-SU-2026:2111-1","SUSE-SU-2026:21876-1","SUSE-SU-2026:21877-1","SUSE-SU-2026:21916-1","SUSE-SU-2026:21919-1","SUSE-SU-2026:2195-1","SUSE-SU-2026:2202-1","SUSE-SU-2026:2215-1","SUSE-SU-2026:2216-1","SUSE-SU-2026:2217-1","SUSE-SU-2026:2238-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43110.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1ae1e1caa428844e481231f6dbe9b4f475f1d52d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734"},{"type":"WEB","url":"https://git.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9c81bcc2c695e0082012a2a3d36a0eefaa51579c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b329fbcf075949a038045d8e9b86ae3d5bbd8a54"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bb"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43110.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43110"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2880b86859967af710c72f7d34fb421a86a71e22"},{"fixed":"b329fbcf075949a038045d8e9b86ae3d5bbd8a54"},{"fixed":"2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734"},{"fixed":"9c81bcc2c695e0082012a2a3d36a0eefaa51579c"},{"fixed":"3ec7437e9d11374105c2c4e47ae671537729d7e6"},{"fixed":"9fca68c2512a362cad258e4df12a307bb2ee4b8e"},{"fixed":"1ae1e1caa428844e481231f6dbe9b4f475f1d52d"},{"fixed":"b427c2b05222db36d32ee141609de6128e9091bb"},{"fixed":"304950a467d83678bd0b0f46331882e2ac23b12d"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43110.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.9.0"},{"fixed":"5.10.258"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.209"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.175"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.136"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.83"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.24"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.14"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43110.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}