ZE
Product
zephyr
by zephyrproject · last CVE Oct 28, 2026
322
CVEs
0
On KEV
10.0
Max CVSS
65
New 30D
Severity mix
Critical 29High 118Medium 154Low 21
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Add zephyr to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-79982
New
8.8
0%
Oct 23
Out-of-bounds write in the USB Bluetooth HCI transport class when a controller-to-host HCI packet exceeds the bulk endpoint maximum packet size
Affected: 3.3.0 through 4.4.2
CVE-2026-76788
8.8
0%
Oct 19
Stack out-of-bounds write in the OSDP Control Panel reply parser
Affected: 3.3.0 through 4.4.2
CVE-2026-19569
8.8
0%
Oct 9
Integer overflow in dynamic kernel object allocation allows user-mode threads to corrupt the kernel heap
Affected: 3.5.0 through 4.4.2
CVE-2026-19570
8.8
0%
Oct 9
Out-of-bounds write in LE Audio Broadcast Sink when copying BASE subgroup metadata into the BASS receive state
Affected: 3.6.0 through 4.4.2
CVE-2026-15894
8.8
0%
Oct 7
Bluetooth Mesh solicitation PDU stack buffer overflow via oversized advertisement
Affected: 3.4.0 before 4.4.2
CVE-2026-13212
8.8
0%
Aug 24
Zephyr virtio driver calls an arbitrary function pointer from an out-of-range used-ring descriptor id
Affected: 4.2.0 before 4.4.2
CVE-2026-12522
8.8
0%
Aug 19
Stack buffer overflow in Zephyr hl7800 modem driver parsing network-supplied +CGCONTRDP address fields
Affected: 2.4.0 before 4.4.2
CVE-2026-9771
8.8
0%
Aug 17
Missing device-pointer validation in flash_copy() syscall allows userspace privilege escalation
Affected: 4.0.0 before 4.4.2
CVE-2026-12366
8.8
0%
Aug 14
Use-after-free freeing an armed dynamically-allocated k_timer in Zephyr userspace object disposal
Affected: 1.12.0 before 4.5.0
CVE-2026-10673
8.8
0%
Jul 15
Out-of-bounds write in ADIN2111/ADIN1110 OA SPI Ethernet RX frame reassembly
Affected: 3.7.0 before 4.3.1; 4.4.0 before 4.4.1
CVE-2026-5068
8.8
0%
Jun 9
bt: l2cap le coc: remote oob write via seg counter stored in net_buf user_data
Affected: through 4.4.0
CVE-2026-5066
8.8
0%
Jun 4
net: sockets: tls: Potential out-of-bounds write/read in socket_op_vtable::connect function
Affected: through 4.3.0
CVE-2023-4424
8.8
0%
Nov 21
An malicious BLE device can cause buffer overflow by sending malformed advertising packet BLE device using Zephyr OS, leading to DoS or potential RCE on the victim BLE device
Affected: through 3.4.0
CVE-2023-5753
8.8
1%
Oct 25
Potential buffer overflows in the Bluetooth subsystem due to asserts being disabled in /subsys/bluetooth/host/hci_core.c
Affected: through 3.4.0
CVE-2023-4263
8.8
1%
Oct 13
Potential buffer overflow vulnerability in the Zephyr IEEE 802.15.4 nRF 15.4 driver
Affected: through 3.4.0
CVE-2023-5184
8.8
0%
Sep 27
Two potential signed to unsigned conversion errors and buffer overflow vulnerabilities at the following locations in the Zephyr IPM drivers
Affected: through 3.4.0
CVE-2023-4259
8.8
1%
Sep 26
Two potential buffer overflow vulnerabilities at the following locations in the Zephyr eS-WiFi driver source code
Affected: through 3.4.0
CVE-2023-2234
8.8
0%
Jul 10
Union variant confusion allows any malicious BT controller to execute arbitrary code on the Zephyr host
Affected: through 3.3.0
CVE-2021-3966
8.8
0%
Jan 11
usb device bluetooth class includes a buffer overflow related to implementation of net_buf_add_mem
Affected: before 3.0.0
CVE-2022-1042
8.8
1%
Jul 26
In Zephyr bluetooth mesh core stack, an out-of-bound write vulnerability can be triggered during provisioning
Affected: through 3.0.0
CVE-2022-1041
8.8
1%
Jul 26
In Zephyr bluetooth mesh core stack, an out-of-bound write vulnerability can be triggered during provisioning
Affected: through 3.0.0
CVE-2021-3835
8.8
1%
Feb 7
Buffer overflow in usb device class
Affected: 2.6.0 before 2.7.1; 3.0.0; 3.0.0
CVE-2021-3330
8.8
1%
Oct 12
RCE/DOS: Linked-list corruption leading to large out-of-bounds write while sorting for forged fragment list in Zephyr
Affected: 2.4.0 before 2.5.0
CVE-2021-3321
8.8
1%
Oct 12
Integer Underflow in Zephyr in IEEE 802154 Fragment Reassembly Header Removal
Affected: 2.4.0 before 2.5.0
CVE-2021-3581
8.8
0%
Oct 5
Buffer Access with Incorrect Length Value in zephyr
Affected: 2.5.0 before 2.6.0
CVE-2020-10065
8.8
0%
May 25
Missing Size Checks in Bluetooth HCI over SPI
Affected: through 1.14.2; 2.0.0 through 2.2.0
CVE-2020-10061
8.8
1%
Jun 5
Improper handling of the full-buffer case in the Zephyr Bluetooth implementation can result in memory corruption
Affected: before 1.14.0; 2.0.0 before 2.2.0
CVE-2026-10848
8.6
0%
Aug 2
Out-of-bounds read in Zephyr OCPP 1.6 RPC message parser (parse_rpc_msg)
Affected: 4.3.0 before 4.4.2
CVE-2026-19184
8.4
0%
Oct 5
Out-of-bounds write in the NXP GAU ADC driver due to byte-versus-sample buffer size validation mismatch
Affected: 3.7.0 before 4.5.0
CVE-2026-12364
8.4
0%
Aug 14
Missing user-space pointer validation in logging syscall z_log_msg_static_create allows kernel memory disclosure and denial of service
Affected: 2.6.0 before 4.4.2
CVE-2026-8718
8.4
0%
Aug 10
Out-of-bounds write in DTLS peer Connection ID getsockopt (`TLS_DTLS_PEER_CID_VALUE`) in Zephyr net sockets/TLS
Affected: 3.5.0 before 4.4.1
CVE-2024-11263
8.4
0%
Nov 15
When the Global Pointer (GP) relative addressing is enabled (CONFIG_RISCV_GP=y), the gp reg points at 0x800 bytes past the start of the .sdata section which is then used by the…
Affected: through 3.7.0
CVE-2026-79977
New
8.2
0%
Oct 23
WireGuard peer endpoint learned from unauthenticated transport-data messages allows off-path tunnel hijack in Zephyr
Affected: 4.4.0 through 4.4.2
CVE-2025-1674
8.2
0%
Feb 25
Out of bounds read when unpacking DNS answers
Affected: through 4.0
CVE-2025-1673
8.2
0%
Feb 25
Out of bounds read when calling crc16_ansi and strlen in dns_validate_msg
Affected: through 4.0
CVE-2026-19186
8.1
0%
Oct 7
Integer underflow in IEEE 802.15.4 frame decryption leads to out-of-bounds read and write
Affected: 3.2.0 before 4.5.0
CVE-2026-12633
8.1
0%
Aug 19
Out-of-bounds write in IPv6 6LoWPAN Context Option handling via unauthenticated Router Advertisement
Affected: 1.8.0 before 4.4.2
CVE-2026-10678
8.1
0%
Jul 21
NULL-pointer / out-of-bounds write in Zephyr MCTP I2C+GPIO target binding driven by an unauthenticated I2C controller
Affected: 4.3.0 before 4.3.1; 4.4.0 before 4.4.2
CVE-2026-10653
8.1
0%
Jun 30
Non-atomic `net_buf` reference counts cause double-free / free-list corruption under concurrent unref
Affected: 2.7.0 before 4.3.1; 4.4.0 before 4.4.2
CVE-2026-9263
8.1
0%
Jun 30
Out-of-bounds read in Bluetooth Controller ISOAL framed RX reassembly leaks adjacent memory into host HCI ISO packets
Affected: 3.3.0 before 4.3.1; 4.4.0 before 4.4.1
CVE-2025-10457
8.1
0%
Sep 19
Bluetooth: Out-Of-Context le_conn_rsp Handling
Affected: through 4.1.0
CVE-2023-1902
8.0
1%
Jul 10
The bluetooth HCI host layer logic not clearing a global reference to a state pointer after handling connection events may allow a malicious HCI Controller to cause the use of a…
Affected: through 3.3.0
CVE-2023-1901
8.0
1%
Jul 10
The bluetooth HCI host layer logic not clearing a global reference to a semaphore after synchronously sending HCI commands may allow a malicious HCI Controller to cause the use of…
Affected: through 3.3.0
CVE-2026-82961
New
7.8–Oct 28
Unvalidated pin index in GPIO syscall handlers allows out-of-bounds kernel writes from user mode
Affected: 2.2.0 through 4.4.2
CVE-2026-79979
New
7.8
0%
Oct 23
Stale TLB entries after demand-paging page-out let arm64 user threads access reused physical frames
Affected: 4.3.0 before 4.5.0
CVE-2026-19676
7.8
0%
Oct 21
PECI transfer syscall verifier does not validate embedded user buffer pointers, allowing arbitrary kernel memory read/write from user mode
Affected: 2.3.0 through 4.4.2
CVE-2026-19736
7.8
0%
Oct 11
Out-of-bounds write in the NXP MCUX TRNG entropy driver for non-word-multiple request lengths
Affected: 4.3.0 through 4.4.2
CVE-2026-19669
7.8
0%
Oct 11
Unbounded variable-length array in fuel gauge syscall verifiers allows kernel stack overflow from user mode
Affected: 3.4.0 before 4.5.0
CVE-2026-19575
7.8
0%
Oct 9
Type confusion in the device_deinit system call allows user-mode threads to execute arbitrary kernel code
Affected: 4.2.0 through 4.4.2
CVE-2026-19185
7.8
0%
Oct 5
Unvalidated user-supplied buffer pointers in the I3C do_ccc system call handler allow kernel memory read/write from user mode
Affected: 3.2.0 before 4.5.0
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