CVE-2026-74538

highCVSS 8.8covered by 1 sourcefirst seen 2026-08-15

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in iso_connect_ind Accessing iso_pi(sk)->conn requires lock_sock, which is not taken in the "ev3" part of iso_connect_ind. It may also be NULL if socket has transitioned away from the LISTEN/CONNECT states before locking. Fix by adding lock/release. Recheck hcon is valid after lock acquire where needed.

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Exploitation outlook

Low exploitation risk0.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all EPSS-scored CVEs.

Advisory coverage (1)

highCVE-2026-74538: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in…nvd · 2026-08-15

External references

NVD record for CVE-2026-74538

CVE.org record

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