CVE-2026-68403: wifi: brcmfmac: initialize SDIO data work before cleanup
CSIRTS triage
- What
- The SDIO driver fails to initialize data work structures before cleanup, potentially causing resource management issues.
- Who is affected
- Systems using Broadcom brcmfmac WiFi driver.
- Urgency
- Low; CVSS 2.5 indicates minimal impact.
- Action
- Update brcmfmac driver to patched version when next available.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68403
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-684030.18% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-68403 | coverage & exploitation status | NVD · CVE.org |
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