CVE-2026-72334
Linux Bluetooth ISO handling bug can crash kernel or leak memory via malformed ISO packets.
Is CVE-2026-72334 being exploited?
Not confirmed. CVE-2026-72334 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.34% probability of exploitation in the next 30 days.
How severe is CVE-2026-72334?
CVE-2026-72334 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-72334?
Yes. A fix has been recorded for CVE-2026-72334. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72334 affect?
CVE-2026-72334 affects Linux kernel (Bluetooth ISO subsystem), Linux-based laptops/servers with Bluetooth, Android and embedded/IoT devices using affected kernels. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72334?
Apply kernel patch promptly; restrict or disable Bluetooth and untrusted controllers until patched.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Kernel panic (DoS) and conn->rx_skb memory leak via malformed Bluetooth ISO_CONT/ISO_END packets; attacker with Bluetooth/controller access can crash or leak kernel memory.
Patch when possible
- affected>= ccf74f2390d60a2f9a75ef496d2564abb478f46a and < 990e65eb9387c4ddfa7f68782b6644c2c35d489f
- affected>= ccf74f2390d60a2f9a75ef496d2564abb478f46a and < e054c1a6ae7310d2815778fddb87da616e11c255
- affected6.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.