Tracker / CVE-2026-43020
CVE-2026-43020
High 7.8
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate LTK enc_size on load Load Long Term Keys stores the user-provided enc_size and later uses it to size fixed-size stack operations when replying to LE LTK requests. An enc_size larger than the 16-byte key buffer can therefore overflow the reply stack buffer. Reject oversized enc_size values while validating the management LTK record so invalid keys never reach the stored key state.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 3.4 → 5.10.253 |
| linux | linux_kernel · 5.11 → 5.15.203 |
| linux | linux_kernel · 5.16 → 6.1.168 |
| linux | linux_kernel · 6.13 → 6.18.22 |
| linux | linux_kernel · 6.19 → 6.19.12 |
| linux | linux_kernel · 6.2 → 6.6.134 |
| linux | linux_kernel · 6.7 → 6.12.81 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.