Linux Bluetooth btintelHW_error() Buffer Overflow

The vulnerability of the btintelHWerror function in the drivers/bluetooth/btintel.c module of the Linux Bluetooth device driver is related to synchronization errors. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of the...

Linux kernel Bluetooth L2CAP Buffer Overflow DoS

The vulnerability of the l2capecredconnreq function in the net/bluetooth/l2capcore.c module of the Linux kernel’s Bluetooth subsystem is related to the execution of operations outside the buffer in memory. Exploiting this vulnerability could allow a malicious actor to gain access to protected...

Bluetooth Protocol Analyzer DoS

The vulnerability of the Bluetooth protocol analyzer, specifically the traffic analysis module of Wireshark, relates to reading beyond the buffer in memory. Exploiting this vulnerability can allow a hacker to cause a service failure...

Linux Bluetooth btusb_work Heap Buffer Overflow DoS

The vulnerability of the btusbwork function in the drivers/bluetooth/btusb.c module of the Linux Bluetooth device driver lies in a buffer overflow in the dynamic memory. Exploiting this vulnerability could allow an attacker to cause a system failure...

Linux kernel Bluetooth L2CAP Buffer Overflow DoS

The vulnerabilities of the functions l2capdisconnectreq and l2capdisconnectrsp in the net/bluetooth/l2capcore.c module of the Linux kernel’s Bluetooth subsystem are related to the reutilization of previously freed memory due to concurrent access to resources. Exploiting these vulnerabilities coul...

Linux kernel Bluetooth L2CAP Buffer Overflow

The vulnerability of the l2capecredconnreq function in the net/bluetooth/l2capcore.c module of the Linux kernel’s Bluetooth subsystem is related to a numerical overflow issue. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of...

Linux kernel Bluetooth L2CAP Buffer Overflow

The vulnerability of the l2capinformationrsp function in the net/bluetooth/l2capcore.c module of the Linux kernel’s Bluetooth subsystem is related to the execution of operations outside the buffer boundaries. Exploiting this vulnerability could allow an attacker to compromise the confidentiality...

CVE-2026-13213

The Hearing Access Service HAS GATT server in subsys/bluetooth/audio/has.c installs a connection-callback set unconditionally via BTCONNCBDEFINE, so securitychanged runs for every connection that establishes security even before the application has called bthasregister. The service attribute...

CVE-2026-13213 Bluetooth HAS: NULL-pointer dereference DoS when a bonded peer reconnects before bt_has_register

The Hearing Access Service HAS GATT server in subsys/bluetooth/audio/has.c installs a connection-callback set unconditionally via BTCONNCBDEFINE, so securitychanged runs for every connection that establishes security even before the application has called bthasregister. The service attribute...

CVE-2026-13213 Bluetooth HAS: NULL-pointer dereference DoS when a bonded peer reconnects before bt_has_register

The Hearing Access Service HAS GATT server in subsys/bluetooth/audio/has.c installs a connection-callback set unconditionally via BTCONNCBDEFINE, so securitychanged runs for every connection that establishes security even before the application has called bthasregister. The service attribute...

EUVD-2026-65003

The Hearing Access Service HAS GATT server in subsys/bluetooth/audio/has.c installs a connection-callback set unconditionally via BTCONNCBDEFINE, so securitychanged runs for every connection that establishes security even before the application has called bthasregister. The service attribute...

CVE-2026-13213

Zephyr RTOS Bluetooth Hearing Access Service (HAS) GATT server (subsys/bluetooth/audio/has.c) contains a NULL-pointer dereference in security_changed(). The connection-callback set is installed unconditionally via BT_CONN_CB_DEFINE, so the callback fires before the application calls bt_has_regist...

CVE-2026-13213 Bluetooth HAS: NULL-pointer dereference DoS when a bonded peer reconnects before bt_has_register

The Hearing Access Service HAS GATT server in subsys/bluetooth/audio/has.c installs a connection-callback set unconditionally via BTCONNCBDEFINE, so securitychanged runs for every connection that establishes security even before the application has called bthasregister. The service attribute...

CVE-2026-13213

The Hearing Access Service HAS GATT server in subsys/bluetooth/audio/has.c installs a connection-callback set unconditionally via BTCONNCBDEFINE, so securitychanged runs for every connection that establishes security even before the application has called bthasregister. The service attribute...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: ISO: Proper handling of “hold” state in “isoconnready”. The dereferencing of “sk” in “isoconnready” must be done either under “conn-lock” or while holding the reference count, to avoid concurrent closure. Currently,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hcisync: holding the connection in the hciconnectbigsync callback. There is a theoretical use-after-free vulnerability if the connection is freed while the hcisync task is running. The issue is mitigated by keeping tra...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: “Bluetooth: btsdio: fix use after free bug in btsdioRemove due to unfinished work” This issue has been resolved through commit 1e9ac114c4428fdb7ff4635b45d4f46017e8916f. This patch may introduce a potential null-ptr-def problem...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: lock sk in isosockgetname Accessing isopisk-conn requires locksock, which is not held here. The issue was fixed by adding the lock/release mechanism...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: The connection reference is held during the abortconnsync function call. There is a theoretical use-after-free vulnerability if the connection is freed while the hcisync task is running. To avoid this issue, t...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: Bluetooth: ISO: Clearing the isodata field always when detaching the conn field from the hcon field. When setting conn-hcon = NULL, it is also necessary to set conn-hcon-isodata = NULL. Otherwise, the subsequent call to...