CVE-2026-53364

A flaw was found in the Linux kernel's Bluetooth Host Controller Interface HCI connection handling. The hcilebigterminate function, which is responsible for terminating Bluetooth connections, allocates memory but fails to free it under specific conditions when certain flags are not set. This memo...

KB5099540: Windows Server 2022 / Azure Stack HCI 22H2 Security Update (July 2026)

The remote Windows host is missing security update 5099540. It is, therefore, affected by multiple vulnerabilities - Integer overflow or wraparound in Windows RDP allows an unauthorized attacker to execute code over a network. CVE-2026-58594 - Heap-based buffer overflow in Windows FTP Service...

Security Bulletin: Vulnerability in undici bundled with IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage

Summary IBM Fusion, IBM Fusion HCI, and IBM Fusion Content-Aware Storage include the undici library, which is affected by a denial of service vulnerability. CVE-2026-22036 Vulnerability Details CVEID:CVE-2026-22036 DESCRIPTION: Undici is an HTTP/1.1 client for Node.js. Prior to 7.18.0 and 6.23.0,...

CVE-2026-53364

The CVE-2026-53364 entry concerns the Linux kernel Bluetooth HCI subsystem. A memory leak in hci_le_big_terminate() occurs when iso_list_data allocated via kzalloc_obj is not freed on an early return path after evaluating PA/BIG sync state (neither pa_sync_term nor big_sync_term flags set). This ...

CVE-2026-53364 Bluetooth: hci_conn: Fix memory leak in hci_le_big_terminate()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciconn: Fix memory leak in hcilebigterminate hcilebigterminate allocates isolistdata via kzallocobj but returns 0 without freeing it when neither pasyncterm nor bigsyncterm flags are set after evaluating the PA and BI...

SUSE-SU-2026:2800-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP7 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-40216: iouring/rsrc: don't rely on user vaddr alignment bsc1259764. - CVE-2025-40341: futex: Don't leak robustlist pointer on exec race bsc1255029. -...

CVE-2026-53357

CVE-2026-53357 triggers a use-after-free in the Linux kernel Bluetooth stack (l2cap) when closing a listening socket: bt_accept_dequeue() temporarily holds the child, then cleanup_listen() may operate on a sk that has already been freed by l2cap_conn_del() during an HCI disconnect. The race occur...

Linux Distros Unpatched Vulnerability : CVE-2026-53357

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: fix UAF in l2capsockcleanuplisten vs l2capconndel btacceptdequeue unlinks a not- yet-accepted child from the parent accept queue and releasesocks it...

CVE-2026-9263

The CVE-2026-9263 issue affects Zephyr’s ISO Adaptation Layer (ISOAL) in the Bluetooth controller. The root cause is that framed ISO PDU start segments (sc=0) with len len - 3 to underflow when len is 0–2. This produced an oversized length (up to 253–255) that was passed to isoal_rx_append_to_sdu...

CVE-2026-9263 Out-of-bounds read in Bluetooth Controller ISOAL framed RX reassembly leaks adjacent memory into host HCI ISO packets

The Zephyr Bluetooth controller ISO Adaptation Layer subsys/bluetooth/controller/llsw/isoal.c fails to validate the length field of a framed ISO PDU start segment. Per the Bluetooth specification a start segment sc=0 always carries a 3-byte timeoffset, so its segment-header len must be at least...

Security Bulletin: Vulnerability in github.com/jackc/pgx/v5 bundled with IBM Fusion, IBM Fusion HCI, IBM Fusion Content-Aware Storage

Summary IBM Fusion, IBM Fusion HCI, IBM Fusion Content-Aware Storage include github.com/jackc/pgx/v5. It is vulnerable to memory-safety vulnerability. CVE-2026-33816 Vulnerability Details CVEID:CVE-2026-33816 DESCRIPTION: Memory-safety vulnerability in github.com/jackc/pgx/v5. CVSS Source: CISA A...

Linux Distros Unpatched Vulnerability : CVE-2026-53209

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Bluetooth: hcisync: reject oversized Broadcast Announcement prepend Existing advertising instances can already hold the maximum extended advertising payload. Wh...

CVE-2026-53209

A flaw was found in the Bluetooth subsystem of the Linux kernel, specifically within the hcisync component. This vulnerability occurs when the hciadvbcastannoucement function attempts to prepend Broadcast Announcement service data to an existing advertising payload that is already at its maximum...

Oracle Linux 9 : kernel (ELSA-2026-27789)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-27789 advisory. - net/sched: fix pedit partial COW leading to page cache corruption Ivan Vecera RHEL-177392 CVE-2026-46331 - scsi: qla2xxx: Completely fix fcport doub...

CVE-2026-53072

A flaw was found in the Linux kernel's Bluetooth subsystem. Improper handling of locking within the hciconnrequestevt function, particularly when the HCIPROTODEFER protocol is active, can result in a Use-After-Free UAF vulnerability. This condition arises when a connection object is accessed afte...

CVE-2026-53073

A flaw was found in the Linux kernel's Bluetooth Host Controller Interface HCI Universal Asynchronous Receiver/Transmitter UART driver. When the hciregisterdev function fails, a flag indicating protocol initialization is not properly cleared. This oversight allows incoming UART data to be process...

RLSA-2026:27789 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: can: isotp: fix tx.buf use-after-free in isotpsendmsg CVE-2026-31474 kernel: mptcp: fix slab-use-after-free in inetlookupestablished CVE-2026-31669 kernel: xen/privcmd: fix double free vi...

CVE-2026-53276

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix a use-after-free of the hciconn pointer In isosockrebindbc, the bis pointer is cached, then the socket lock is dropped: bis = isopisk-conn-hcon; / Release the socket before lookups since that requires hcidevlo...

CVE-2026-53251

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix not releasing hdev reference on isoconnbigsync hcigetroute returns a reference-counted hcidev pointer via hcidevhold. The function exits normally or with an error without ever releasing it...

CVE-2026-53252

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: fix memory leak in error path of hciallocdev Early failures in Bluetooth HCI UART configuration leak SRCU percpu memory. When device initialization fails before hciregisterdev completes, the HCIUNREGISTER flag is never...