CVE-2026-43017
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2026-05-01
Modified: 2026-11-11
First seen: 2026-11-06
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate mesh send advertising payload length mesh_send() currently bounds MGMT_OP_MESH_SEND by total command length, but it never verifies that the bytes supplied for the flexible adv_data[] array actually match the embedded adv_data_len field. MGMT_MESH_SEND_SIZE only covers the fixed header, so a truncated command can still pass the existing 20..50 byte range check and later drive the async mesh send path past the end of the queued command buffer. Keep rejecting zero-length and oversized advertising payloads, but validate adv_data_len explicitly and require the command length to exactly match the flexible array size before queueing the request.
Affected Software (14)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | b338d91703fae6f6afd67f3f75caa3b8f36ddef3 < 24fa32369cf15d8fc918bdfe94097b12e6acada0 |
| Linux | Linux | b338d91703fae6f6afd67f3f75caa3b8f36ddef3 < 244b639e6a3a8e26241e201004a3a9f764476631 |
| Linux | Linux | b338d91703fae6f6afd67f3f75caa3b8f36ddef3 < 0b706fb2294aff3adfd54653bda1b5e356ad4566 |
| Linux | Linux | b338d91703fae6f6afd67f3f75caa3b8f36ddef3 < edb5898cfa91afe7e8f83eda18d93034c953d632 |
| Linux | Linux | b338d91703fae6f6afd67f3f75caa3b8f36ddef3 < 562ed1954f0c1bff3422b7b752bd3dacf185edbf |
| Linux | Linux | b338d91703fae6f6afd67f3f75caa3b8f36ddef3 < bda93eec78cdbfe5cda00785cefebd443e56b88b |
| Linux | Linux | 6.1 |
| linux | linux_kernel | 6.1 – 6.1.168 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |
| linux | linux_kernel | 7.0 |