CVE-2026-43110
wifi: brcmfmac: validate bsscfg indices in IF events
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
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]
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 6, 2026 |
| Last Updated | Jun 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
2880b86859967af710c72f7d34fb421a86a71e22 < b329fbcf075949a038045d8e9b86ae3d5bbd8a54 2880b86859967af710c72f7d34fb421a86a71e22 < 2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734 2880b86859967af710c72f7d34fb421a86a71e22 < 9c81bcc2c695e0082012a2a3d36a0eefaa51579c 2880b86859967af710c72f7d34fb421a86a71e22 < 3ec7437e9d11374105c2c4e47ae671537729d7e6 2880b86859967af710c72f7d34fb421a86a71e22 < 9fca68c2512a362cad258e4df12a307bb2ee4b8e 2880b86859967af710c72f7d34fb421a86a71e22 < 1ae1e1caa428844e481231f6dbe9b4f475f1d52d 2880b86859967af710c72f7d34fb421a86a71e22 < b427c2b05222db36d32ee141609de6128e9091bb 2880b86859967af710c72f7d34fb421a86a71e22 < 304950a467d83678bd0b0f46331882e2ac23b12d
Linux / Linux
3.9
References
git.kernel.org: https://git.kernel.org/stable/c/b329fbcf075949a038045d8e9b86ae3d5bbd8a54 git.kernel.org: https://git.kernel.org/stable/c/2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734 git.kernel.org: https://git.kernel.org/stable/c/9c81bcc2c695e0082012a2a3d36a0eefaa51579c git.kernel.org: https://git.kernel.org/stable/c/3ec7437e9d11374105c2c4e47ae671537729d7e6 git.kernel.org: https://git.kernel.org/stable/c/9fca68c2512a362cad258e4df12a307bb2ee4b8e git.kernel.org: https://git.kernel.org/stable/c/1ae1e1caa428844e481231f6dbe9b4f475f1d52d git.kernel.org: https://git.kernel.org/stable/c/b427c2b05222db36d32ee141609de6128e9091bb git.kernel.org: https://git.kernel.org/stable/c/304950a467d83678bd0b0f46331882e2ac23b12d