ZE
Product
zephyr
by zephyrproject · last CVE Oct 26, 2026
320
CVEs
0
On KEV
10.0
Max CVSS
63
New 30D
Severity mix
Critical 29High 117Medium 153Low 21
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Add zephyr to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2023-4260
10.0
1%
Sep 27
Potential off-by-one buffer overflow vulnerability in the Zephyr fuse file system
Affected: through 3.4.0
CVE-2026-13214
9.8
1%
Aug 25
Stack buffer overflow in OCPP GetConfiguration key parsing
Affected: 4.3.0 before 4.4.2
CVE-2026-10666
9.8
1%
Jul 12
Stack buffer overflow in `net_ipaddr_parse()` IPv4 address-with-port parsing in `subsys/net/ip/utils.c`
Affected: 1.9.0 before 4.3.1; 4.4.0 before 4.4.1
CVE-2026-5067
9.8
1%
Jun 9
Out-of-bounds read/write in HTTP WebSocket upgrade via non-null-terminated Sec-WebSocket-Key
Affected: 3.7.0 through 4.3.0
CVE-2026-1678
9.8
0%
Mar 5
dns: memory‑safety issue in the DNS name parser
Affected: through 4.3.0
CVE-2023-6881
9.8
0%
Feb 29
Possible buffer overflow in is_mount_point
Affected: through 3.5.0
CVE-2023-6249
9.8
0%
Feb 18
Signed to unsigned conversion esp32_ipm_send
Affected: before 3.5.0; 3.5.0; 3.5.0; 3.5.0; 3.5.0
CVE-2023-5779
9.8
0%
Feb 18
can: out of bounds in remove_rx_filter function
Affected: through 3.5.0
CVE-2023-6749
9.8
0%
Feb 18
Unchecked length coming from user input in settings shell
Affected: through 3.5.0
CVE-2023-5055
9.8
1%
Nov 21
Possible variant of CVE-2021-3434 in function le_ecred_reconf_req
Affected: through 3.4.0
CVE-2023-4257
9.8
1%
Oct 13
Unchecked user input length in /subsys/net/l2/wifi/wifi_shell.c can cause buffer overflows
Affected: through 3.4.0
CVE-2023-3725
9.8
1%
Oct 6
Potential buffer overflow vulnerability in the Zephyr CAN bus subsystem
Affected: through 3.4.0
CVE-2022-3806
9.8
1%
Jan 25
Inconsistent handling of error cases in bluetooth hci may lead to a double free condition of a network buffer
Affected: through 3.2.0
CVE-2022-2993
9.8
1%
Dec 9
There is an error in the condition of the last if-statement in the function smp_check_keys
Affected: through 3.1.0
CVE-2021-3323
9.8
1%
Oct 12
Integer Underflow in 6LoWPAN IPHC Header Uncompression in Zephyr
Affected: 2.4.0 before 2.5.0
CVE-2021-3625
9.8
2%
Oct 5
Buffer overflow in Zephyr USB DFU DNLOAD
Affected: 2.5.0 before 2.7.0
CVE-2021-3319
9.8
1%
Oct 5
DOS: Incorrect 802154 Frame Validation for Omitted Source / Dest Addresses
Affected: 2.4.0 before 2.5.0
CVE-2020-13601
9.8
1%
May 25
Possible read out of bounds in dns read
Affected: through 1.14.2; 2.0.0 through 2.3.0
CVE-2020-10064
9.8
1%
May 25
Improper Input Frame Validation in ieee802154 Processing
Affected: through 1.14.2; 2.0.0 through 2.2.0
CVE-2020-10071
9.8
3%
Jun 5
The Zephyr MQTT parsing code performs insufficient checking of the length field on publish messages, allowing a buffer overflow and potentially remote code execution
Affected: through 2.2.0
CVE-2020-10070
9.8
3%
Jun 5
In the Zephyr Project MQTT code, improper bounds checking can result in memory corruption and possibly remote code execution
Affected: through 2.2.0
CVE-2020-10062
9.8
3%
Jun 5
An off-by-one error in the Zephyr project MQTT packet length decoder can result in memory corruption and possible remote code execution
Affected: through 2.2.0
CVE-2020-10022
9.8
2%
May 11
A malformed JSON payload that is received from an UpdateHub server may trigger memory corruption in the Zephyr OS
Affected: 2.1.0; 2.2.0
CVE-2017-14199
9.8
2%
Apr 12
A buffer overflow has been found in the Zephyr Project's getaddrinfo() implementation in 1.9.0 and 1.10.0
Affected: 1.9.0; 1.10.0
CVE-2018-1000800
9.8
2%
Sep 6
zephyr-rtos version 1.12.0 contains a NULL base pointer reference vulnerability in sys_ring_buf_put(), sys_ring_buf_get() that can result in CPU Page Fault (error code 0x00000010)
Affected: 1.12.0
CVE-2023-4264
9.6
1%
Sep 27
Potential buffer overflow vulnerabilities n the Zephyr Bluetooth subsystem
Affected: through 3.4.0
CVE-2026-10672
9.1
1%
Jul 14
Unterminated URI buffer causes out-of-bounds read in LwM2M firmware pull (Package URI)
Affected: 3.0.0 before 4.3.1; 4.4.0 before 4.4.1
CVE-2025-1675
9.1
0%
Feb 25
Out of bounds read in dns_copy_qname
Affected: through 4.0.0
CVE-2024-1638
9.1
0%
Feb 19
The documentation specifies that the BT_GATT_PERM_READ_LESC and BT_GATT_PERM_WRITE_LESC defines for a Bluetooth characteristic: Attribute read/write permission with LE Secure…
Affected: through 3.5.0
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
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