Answer in brief
CVE-2026-43110 records a High severity (CVSS 8.8) vulnerability in wifi: brcmfmac: validate bsscfg indices in IF events. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=2880b86859967af710c72f7d34fb421a86a71e22 <b329fbcf075949a038045d8e9b86ae3d5bbd8a54 || >=2880b86859967af710c72f7d34fb421a86a71e22 <2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734 || >=2880b86859967af710c72f7d34fb421a86a71e22 <9c81bcc2c695e0082012a2a3d36a0eefaa51579c || >=2880b86859967af710c72f7d34fb421a86a71e22 <3ec7437e9d11374105c2c4e47ae671537729d7e6 || >=2880b86859967af710c72f7d34fb421a86a71e22 <9fca68c2512a362cad258e4df12a307bb2ee4b8e || >=2880b86859967af710c72f7d34fb421a86a71e22 <1ae1e1caa428844e481231f6dbe9b4f475f1d52d || >=2880b86859967af710c72f7d34fb421a86a71e22 <b427c2b05222db36d32ee141609de6128e9091bb || >=2880b86859967af710c72f7d34fb421a86a71e22 <304950a467d83678bd0b0f46331882e2ac23b12d | b329fbcf075949a038045d8e9b86ae3d5bbd8a54, 2ae3ccb78c0a9ef5ee3d80d02ab319ac1d5af734, 9c81bcc2c695e0082012a2a3d36a0eefaa51579c, 3ec7437e9d11374105c2c4e47ae671537729d7e6, 9fca68c2512a362cad258e4df12a307bb2ee4b8e, 1ae1e1caa428844e481231f6dbe9b4f475f1d52d, b427c2b05222db36d32ee141609de6128e9091bb, 304950a467d83678bd0b0f46331882e2ac23b12d |
| Linux/Linuxgeneric | 3.9 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
May 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
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]
Quoted source text, attributed separately from HOL analysis.