CVE-2026-43110 | BDVDB-2026-330883 Detail
LinuxLinux
Description#
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: validate bsscfg indices in IF events brcmf_fweh_handle_if_event() validates the firmware-provided interface index before it touches drvr->iflist[], but it still uses the raw bsscfgidx field as an array index without a matching range check. Reject IF events whose bsscfg index does not fit in drvr->iflist[] before indexing the interface array. [add missing wifi prefix]
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: adjacent.
Weaknesses#
- CWE-129 Improper Validation of Array Index
References#
- https://git.kernel.org/stable/c/b329fbcf075949a038045d8e9b86ae3d5bbd8a54
- https://git.kernel.org/stable/c/2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734
- https://git.kernel.org/stable/c/9c81bcc2c695e0082012a2a3d36a0eefaa51579c
- https://git.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6
- https://git.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8e
- https://git.kernel.org/stable/c/1ae1e1caa428844e481231f6dbe9b4f475f1d52d
- https://git.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bb
- https://git.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12d
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.