PT-2026-51426 · Zephyrproject Rtos · Zephyr
Published
2026-06-22
·
Updated
2026-06-23
·
CVE-2026-10651
CVSS v3.1
7.1
High
| Vector | AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
A malformed Bluetooth Classic SDP attribute can trigger a reachable assertion in Zephyr's SDP parser. In subsys/bluetooth/host/classic/sdp.c, bt sdp parse attribute() accepts an input buffer once it contains the 1-byte attribute type and 2-byte attribute id, but then unconditionally pulls an additional byte for the value type without verifying that the byte is present. A truncated 3-byte attribute (for example 09 00 09) therefore reaches net buf simple pull() with insufficient remaining length, triggering the ASSERT NO MSG(buf->len >= len) check and a kernel panic in assert-enabled builds (denial of service). In builds where assertions are disabled, parsing may continue past the end of the available buffer, leading to an out-of-bounds read and undefined behavior.
Fix
RCE
Assertion Failure
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Related Identifiers
Affected Products
Zephyr