CVE-2026-19740

The Link Layer Control Procedure LLCP implementation of the Zephyr software Bluetooth LE Controller retains the receive node that carried an accepted LLPHYUPDATEIND so that it can later be reused for the host notification when the update instant is reached llcprxnoderetain in...

CVE-2026-19740

The Zephyr software Bluetooth LE Controller contains a vulnerability in its Link Layer Control Procedure (LLCP) implementation. Specifically, the functions llcp_lp_pu_rx() and llcp_rp_pu_rx() in subsys/bluetooth/controller/ll_sw/ull_llcp_phy.c fail to release a retained receive node when processi...

CVE-2026-19740 Bluetooth LE Controller: retained RX node leak and reachable assertion in the PHY Update procedure

The Link Layer Control Procedure LLCP implementation of the Zephyr software Bluetooth LE Controller retains the receive node that carried an accepted LLPHYUPDATEIND so that it can later be reused for the host notification when the update instant is reached llcprxnoderetain in...

CVE-2026-19740 Bluetooth LE Controller: retained RX node leak and reachable assertion in the PHY Update procedure

The Link Layer Control Procedure LLCP implementation of the Zephyr software Bluetooth LE Controller retains the receive node that carried an accepted LLPHYUPDATEIND so that it can later be reused for the host notification when the update instant is reached llcprxnoderetain in...

CVE-2026-19740

The Link Layer Control Procedure LLCP implementation of the Zephyr software Bluetooth LE Controller retains the receive node that carried an accepted LLPHYUPDATEIND so that it can later be reused for the host notification when the update instant is reached llcprxnoderetain in...

EUVD-2026-97109

The Link Layer Control Procedure LLCP implementation of the Zephyr software Bluetooth LE Controller retains the receive node that carried an accepted LLPHYUPDATEIND so that it can later be reused for the host notification when the update instant is reached llcprxnoderetain in...

CVE-2026-19740 Bluetooth LE Controller: retained RX node leak and reachable assertion in the PHY Update procedure

The Link Layer Control Procedure LLCP implementation of the Zephyr software Bluetooth LE Controller retains the receive node that carried an accepted LLPHYUPDATEIND so that it can later be reused for the host notification when the update instant is reached llcprxnoderetain in...

CVE-2026-19739 Bluetooth LE controller leaks a retained RX node when an unexpected LL Control PDU arrives during a Connection Update

The Bluetooth Link Layer control procedure code in subsys/bluetooth/controller/llsw/ullllcpconnupd.c retains the received RX node while a Connection Update / Connection Parameter procedure waits for its instant, so the node can later carry the host notification llcprxnoderetain, which marks it...

CVE-2026-19740: Missing Release of Memory after Effective Lifetime

The Link Layer Control Procedure LLCP implementation of the Zephyr software Bluetooth LE Controller retains the receive node that carried an accepted LLPHYUPDATEIND so that it can later be reused for the host notification when the update instant is reached llcprxnoderetain in...

PT-2026-110227

Name of the Vulnerable Software and Affected Versions Zephyr versions 3.4.0 through 3.7.x Description The Link Layer Control Procedure LLCP implementation of the Bluetooth LE Controller fails to release a retained receive node when processing invalid Protocol Data Units PDUs during PHY Update,...