CVE-2026-19293
Bluetooth SMP omits max key size, allowing weaker keys and easier brute-force of BLE link keys.
Is CVE-2026-19293 being exploited?
Not confirmed. CVE-2026-19293 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 0.13% probability of exploitation in the next 30 days.
How severe is CVE-2026-19293?
CVE-2026-19293 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-2026-19293?
Not known from our data. No patch reference has been recorded for CVE-2026-19293, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2026-19293 affect?
CVE-2026-19293 affects Bluetooth Low Energy peripherals, BLE stacks/firmware (device vendors), IoT devices, Wearables, and 1 further product or version. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-19293?
Apply vendor firmware updates when released; restrict BLE pairing; unpair untrusted devices; monitor BLE activity.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Local/adjacent attacker can force or accept smaller BLE keys, enabling offline brute-force to recover link keys, decrypt traffic, spoof or take over devices.
Patch when possible
- affected>= 4.0.0 and < 4.1.0
- affected>= 2.0.0 and < 2.14.0
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.