# zephyr.

Every CVE that names zephyr among its affected products, newest first. Vendors and products are as the CNA wrote them.

## Records, newest first

- [Memory leak in the Mbed TLS crypto shim on failed cipher/AEAD operations leads to remotely triggered crypto denial of service](https://agentprime.io/advisories/CVE-2026-87044.md)
  `CVE-2026-87044` · CVE record: zephyrproject zephyr · CVSS 6.5 Medium · Not analysed yet · Published 4 Nov 2026 · Tags: Denial of service
- [sys_rand_get() silently returns an unwritten buffer when the entropy device is not ready](https://agentprime.io/advisories/CVE-2026-87043.md)
  `CVE-2026-87043` · CVE record: zephyrproject zephyr · CVSS 4.8 Medium · Not analysed yet · Published 4 Nov 2026 · Tags: Weak cryptography or TLS
- [Inverted memory-permission check in the RTIO syscall verifier allows a user-mode thread to read and write arbitrary kernel memory](https://agentprime.io/advisories/CVE-2026-87041.md)
  `CVE-2026-87041` · CVE record: zephyrproject zephyr · CVSS 7.8 High · Not analysed yet · Published 4 Nov 2026 · Tags: Memory corruption
- [Bluetooth LE Controller accepts received PDUs whose length field exceeds the configured maximum receive length, causing out-of-bounds read and write](https://agentprime.io/advisories/CVE-2026-87040.md)
  `CVE-2026-87040` · CVE record: zephyrproject zephyr · CVSS 8.3 High · Not analysed yet · Published 4 Nov 2026 · Tags: Memory corruption
- [I2S configure syscall handler passes an unvalidated user-supplied kernel object pointer to drivers](https://agentprime.io/advisories/CVE-2026-87039.md)
  `CVE-2026-87039` · CVE record: zephyrproject zephyr · CVSS 7.8 High · Not analysed yet · Published 4 Nov 2026 · Tags: Memory corruption
- [Time-of-check/time-of-use double fetch in the Zephyr i3c_transfer() syscall handler allows kernel-mode control-flow hijack from user mode](https://agentprime.io/advisories/CVE-2026-87038.md)
  `CVE-2026-87038` · CVE record: zephyrproject zephyr · CVSS 7.0 High · Not analysed yet · Published 4 Nov 2026 · Tags: Race condition
- [Unvalidated user pointers in RTIO syscall verifiers allow a user-mode thread to write kernel memory](https://agentprime.io/advisories/CVE-2026-16511.md)
  `CVE-2026-16511` · CVE record: zephyrproject zephyr · CVSS 8.8 High · Not analysed yet · Published 4 Nov 2026 · Tags: Memory corruption, Broken access control
- [Bluetooth Classic AVDTP session reuse re-initializes a queued work item, corrupting the system work queue](https://agentprime.io/advisories/CVE-2026-85036.md)
  `CVE-2026-85036` · CVE record: zephyrproject zephyr · CVSS 5.7 Medium · Not analysed yet · Published 4 Nov 2026 · Tags: CWE-666
- [Use-after-free via dynamically allocated message queue retained by the CAN RX filter](https://agentprime.io/advisories/CVE-2026-85035.md)
  `CVE-2026-85035` · CVE record: zephyrproject zephyr · CVSS 8.8 High · Not analysed yet · Published 3 Nov 2026 · Tags: Memory corruption
- [Out-of-bounds write in the Bluetooth GATT client: oversized notification and indication values delivered to subscribers](https://agentprime.io/advisories/CVE-2026-85034.md)
  `CVE-2026-85034` · CVE record: zephyrproject zephyr · CVSS 6.7 Medium · Not analysed yet · Published 3 Nov 2026 · Tags: Memory corruption
- [Bluetooth Classic AVRCP Target: missing TX cleanup on disconnect permanently stalls vendor-dependent responses and leaks them to the next peer](https://agentprime.io/advisories/CVE-2026-85033.md)
  `CVE-2026-85033` · CVE record: zephyrproject zephyr · CVSS 4.6 Medium · Not analysed yet · Published 3 Nov 2026 · Tags: CWE-459
- [Use-after-free in the MCTP over USB binding when the host disables the class while RX parsing is in progress](https://agentprime.io/advisories/CVE-2026-85032.md)
  `CVE-2026-85032` · CVE record: zephyrproject zephyr · CVSS 4.8 Medium · Not analysed yet · Published 3 Nov 2026 · Tags: Memory corruption
- [Out-of-bounds write in Zephyr Ethernet L2 when adding the link-layer header to a forwarded packet](https://agentprime.io/advisories/CVE-2026-82962.md)
  `CVE-2026-82962` · CVE record: zephyrproject zephyr · CVSS 6.5 Medium · Not analysed yet · Published 28 Oct 2026 · Tags: Memory corruption
- [Unvalidated pin index in GPIO syscall handlers allows out-of-bounds kernel writes from user mode](https://agentprime.io/advisories/CVE-2026-82961.md)
  `CVE-2026-82961` · CVE record: zephyrproject zephyr · CVSS 7.8 High · Not analysed yet · Published 28 Oct 2026 · Tags: Memory corruption
- [Cross-session AES key confusion in the Espressif ESP32 hardware crypto driver](https://agentprime.io/advisories/CVE-2026-82390.md)
  `CVE-2026-82390` · CVE record: zephyrproject zephyr · CVSS 3.7 Low · Not analysed yet · Published 26 Oct 2026 · Tags: Race condition
- [Bluetooth Classic HFP AG wipes an object still linked in the SDP request list on connect failure, causing a NULL dereference](https://agentprime.io/advisories/CVE-2026-82389.md)
  `CVE-2026-82389` · CVE record: zephyrproject zephyr · CVSS 6.5 Medium · Not analysed yet · Published 26 Oct 2026 · Tags: Memory corruption
- [Use of a released HFP HF object after a failed RFCOMM connect in the Bluetooth Classic host](https://agentprime.io/advisories/CVE-2026-82388.md)
  `CVE-2026-82388` · CVE record: zephyrproject zephyr · CVSS 5.3 Medium · Not analysed yet · Published 26 Oct 2026 · Tags: Memory corruption
- [IPv6 stable and temporary interface identifiers derived from a non-cryptographic PRNG secret key](https://agentprime.io/advisories/CVE-2026-19742.md)
  `CVE-2026-19742` · CVE record: zephyrproject zephyr · CVSS 3.7 Low · Not analysed yet · Published 26 Oct 2026 · Tags: Weak cryptography or TLS
- [Bluetooth OTS server discloses uninitialized stack memory in failed Calculate Checksum responses](https://agentprime.io/advisories/CVE-2026-81038.md)
  `CVE-2026-81038` · CVE record: zephyrproject zephyr · CVSS 7.1 High · Not analysed yet · Published 26 Oct 2026 · Tags: Denial of service, Memory corruption
- [Bluetooth Host connection reservation leak when multiple connectable advertising sets share an identity](https://agentprime.io/advisories/CVE-2026-81039.md)
  `CVE-2026-81039` · CVE record: zephyrproject zephyr · CVSS 4.3 Medium · Not analysed yet · Published 26 Oct 2026 · Tags: Denial of service
- [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](https://agentprime.io/advisories/CVE-2026-79982.md)
  `CVE-2026-79982` · CVE record: zephyrproject zephyr · CVSS 8.8 High · Not analysed yet · Published 23 Oct 2026 · Tags: Memory corruption
- [DNS resolver reuses a single UDP source port for all queries, easing off-path answer spoofing](https://agentprime.io/advisories/CVE-2026-79981.md)
  `CVE-2026-79981` · CVE record: zephyrproject zephyr · CVSS 6.5 Medium · Not analysed yet · Published 23 Oct 2026 · Tags: Weak cryptography or TLS
- [Predictable and reused DHCPv4 transaction identifier allows spoofed DHCP replies to reconfigure gateway and DNS](https://agentprime.io/advisories/CVE-2026-79980.md)
  `CVE-2026-79980` · CVE record: zephyrproject zephyr · CVSS 5.6 Medium · Not analysed yet · Published 23 Oct 2026 · Tags: CWE-340
- [Stale TLB entries after demand-paging page-out let arm64 user threads access reused physical frames](https://agentprime.io/advisories/CVE-2026-79979.md)
  `CVE-2026-79979` · CVE record: zephyrproject zephyr · CVSS 7.8 High · Not analysed yet · Published 23 Oct 2026 · Tags: Memory corruption
- [Out-of-bounds write in the ADXL345 sensor driver RTIO streaming FIFO read path](https://agentprime.io/advisories/CVE-2026-79978.md)
  `CVE-2026-79978` · CVE record: zephyrproject zephyr · CVSS 3.6 Low · Not analysed yet · Published 23 Oct 2026 · Tags: Memory corruption
- [WireGuard peer endpoint learned from unauthenticated transport-data messages allows off-path tunnel hijack in Zephyr](https://agentprime.io/advisories/CVE-2026-79977.md)
  `CVE-2026-79977` · CVE record: zephyrproject zephyr · CVSS 8.2 High · Not analysed yet · Published 23 Oct 2026 · Tags: Authentication bypass, CWE-346
- [OpenThread joiner autostart uses a publicly documented default Joining Device Credential (PSKd)](https://agentprime.io/advisories/CVE-2026-19741.md)
  `CVE-2026-19741` · CVE record: zephyrproject zephyr · CVSS 7.5 High · Not analysed yet · Published 23 Oct 2026 · Tags: CWE-1392
- [Missing kernel object permission check in devmux syscalls allows unprivileged user threads to retarget a device multiplexer](https://agentprime.io/advisories/CVE-2026-19947.md)
  `CVE-2026-19947` · CVE record: zephyrproject zephyr · CVSS 5.3 Medium · Not analysed yet · Published 21 Oct 2026 · Tags: Broken access control
- [NULL pointer dereference in the MCTP I2C+GPIO target binding triggerable by a peer I2C controller](https://agentprime.io/advisories/CVE-2026-79976.md)
  `CVE-2026-79976` · CVE record: zephyrproject zephyr · CVSS 7.1 High · Not analysed yet · Published 21 Oct 2026 · Tags: Memory corruption
- [Out-of-bounds write in the Nuvoton NPCX eSPI Target-Attached-Flash receive path from an unvalidated host-supplied packet length](https://agentprime.io/advisories/CVE-2026-78119.md)
  `CVE-2026-78119` · CVE record: zephyrproject zephyr · CVSS 6.3 Medium · Not analysed yet · Published 21 Oct 2026 · Tags: Memory corruption
- [Race condition on kernel wait queues: unlocked z_waitq_head() read in the timer expiration handler can yield a stale or sentinel thread pointer on SMP](https://agentprime.io/advisories/CVE-2026-78118.md)
  `CVE-2026-78118` · CVE record: zephyrproject zephyr · CVSS 7.0 High · Not analysed yet · Published 21 Oct 2026 · Tags: Race condition
- [Race condition on shared HCI TX descriptor in the Infineon PSOC 6 BLESS Bluetooth driver can leak adjacent memory over the air](https://agentprime.io/advisories/CVE-2026-78117.md)
  `CVE-2026-78117` · CVE record: zephyrproject zephyr · CVSS 4.2 Medium · Not analysed yet · Published 21 Oct 2026 · Tags: Race condition
- [Out-of-bounds read in Bluetooth Classic A2DP codec information element handling](https://agentprime.io/advisories/CVE-2026-18748.md)
  `CVE-2026-18748` · CVE record: zephyrproject zephyr · CVSS 3.5 Low · Not analysed yet · Published 21 Oct 2026 · Tags: Memory corruption
- [Double free of an RTIO submission in the Broadcom AFBR-S50 sensor driver data-evaluation error path](https://agentprime.io/advisories/CVE-2026-78116.md)
  `CVE-2026-78116` · CVE record: zephyrproject zephyr · CVSS 5.2 Medium · Not analysed yet · Published 21 Oct 2026 · Tags: Memory corruption
- [PECI transfer syscall verifier does not validate embedded user buffer pointers, allowing arbitrary kernel memory read/write from user mode](https://agentprime.io/advisories/CVE-2026-19676.md)
  `CVE-2026-19676` · CVE record: zephyrproject zephyr · CVSS 7.8 High · Not analysed yet · Published 21 Oct 2026 · Tags: Memory corruption
- [Bluetooth Classic HFP Hands-Free: TX buffer leak on RFCOMM disconnect leads to permanent Bluetooth denial of service](https://agentprime.io/advisories/CVE-2026-77684.md)
  `CVE-2026-77684` · CVE record: zephyrproject zephyr · CVSS 5.7 Medium · Not analysed yet · Published 19 Oct 2026 · Tags: Denial of service
- [Zephyr RTIO syscall verifier validates output parameters for read instead of write access](https://agentprime.io/advisories/CVE-2026-19595.md)
  `CVE-2026-19595` · CVE record: zephyrproject zephyr · CVSS 6.1 Medium · Not analysed yet · Published 19 Oct 2026 · Tags: Memory corruption
- [Stack out-of-bounds write in the OSDP Control Panel reply parser](https://agentprime.io/advisories/CVE-2026-76788.md)
  `CVE-2026-76788` · CVE record: zephyrproject zephyr · CVSS 8.8 High · Not analysed yet · Published 19 Oct 2026 · Tags: Memory corruption
- [NULL pointer dereference in the UpdateHub FOTA client when probe metadata omits sha256sum](https://agentprime.io/advisories/CVE-2026-76787.md)
  `CVE-2026-76787` · CVE record: zephyrproject zephyr · CVSS 5.9 Medium · Not analysed yet · Published 19 Oct 2026 · Tags: Memory corruption
- [Out-of-bounds read from received-frame length underflow in the STM32WBA IEEE 802.15.4 driver](https://agentprime.io/advisories/CVE-2026-75085.md)
  `CVE-2026-75085` · CVE record: zephyrproject zephyr · CVSS 4.2 Medium · Not analysed yet · Published 14 Oct 2026 · Tags: Memory corruption
- [Out-of-bounds write in the TI CC1200 IEEE 802.15.4 driver from an unvalidated radio-supplied packet length](https://agentprime.io/advisories/CVE-2026-75084.md)
  `CVE-2026-75084` · CVE record: zephyrproject zephyr · CVSS 6.8 Medium · Not analysed yet · Published 14 Oct 2026 · Tags: Memory corruption
- [Out-of-bounds read and net_buf length underflow in Zephyr Ethernet L2 when parsing a truncated VLAN header](https://agentprime.io/advisories/CVE-2026-19673.md)
  `CVE-2026-19673` · CVE record: zephyrproject zephyr · CVSS 7.1 High · Not analysed yet · Published 14 Oct 2026 · Tags: Memory corruption
- [Integer underflow of the radio-reported frame length causes an out-of-bounds write in the NXP KW41Z IEEE 802.15.4 driver](https://agentprime.io/advisories/CVE-2026-75083.md)
  `CVE-2026-75083` · CVE record: zephyrproject zephyr · CVSS 5.9 Medium · Not analysed yet · Published 14 Oct 2026 · Tags: Memory corruption
- [Bluetooth HFP AG reuses a connection slot while a delayable work item is still armed, corrupting kernel timeout bookkeeping](https://agentprime.io/advisories/CVE-2026-19940.md)
  `CVE-2026-19940` · CVE record: zephyrproject zephyr · CVSS 6.5 Medium · Not analysed yet · Published 13 Oct 2026 · Tags: Memory corruption
- [Bluetooth Classic AVDTP: stale timeout work on signalling-channel disconnect leads to kernel timeout-list corruption](https://agentprime.io/advisories/CVE-2026-19939.md)
  `CVE-2026-19939` · CVE record: zephyrproject zephyr · CVSS 6.3 Medium · Not analysed yet · Published 13 Oct 2026 · Tags: Memory corruption
- [Use-after-free of an ATT PDU buffer when signing an outgoing Bluetooth ATT Signed Write Command fails](https://agentprime.io/advisories/CVE-2026-19938.md)
  `CVE-2026-19938` · CVE record: zephyrproject zephyr · CVSS 5.9 Medium · Not analysed yet · Published 12 Oct 2026 · Tags: Memory corruption
- [Bluetooth Mesh Access layer permanently leaks delayable-message contexts, disabling all model responses](https://agentprime.io/advisories/CVE-2026-19937.md)
  `CVE-2026-19937` · CVE record: zephyrproject zephyr · CVSS 5.7 Medium · Not analysed yet · Published 12 Oct 2026 · Tags: Denial of service
- [Bluetooth Mesh delayable message queue: unsynchronized list access leads to NULL pointer dereference](https://agentprime.io/advisories/CVE-2026-19936.md)
  `CVE-2026-19936` · CVE record: zephyrproject zephyr · CVSS 4.8 Medium · Not analysed yet · Published 12 Oct 2026 · Tags: Race condition
- [Bluetooth LE Controller: retained RX node leak and reachable assertion in the PHY Update procedure](https://agentprime.io/advisories/CVE-2026-19740.md)
  `CVE-2026-19740` · CVE record: zephyrproject zephyr · CVSS 6.5 Medium · Not analysed yet · Published 11 Oct 2026 · Tags: Denial of service, CWE-459
- [Bluetooth LE controller leaks a retained RX node when an unexpected LL Control PDU arrives during a Connection Update](https://agentprime.io/advisories/CVE-2026-19739.md)
  `CVE-2026-19739` · CVE record: zephyrproject zephyr · CVSS 6.5 Medium · Not analysed yet · Published 11 Oct 2026 · Tags: Denial of service, CWE-459
- [Retained RX node leak and reachable assertion in Bluetooth Controller CIS Create procedures](https://agentprime.io/advisories/CVE-2026-19738.md)
  `CVE-2026-19738` · CVE record: zephyrproject zephyr · CVSS 6.5 Medium · Not analysed yet · Published 11 Oct 2026 · Tags: Denial of service
- [Use-after-free of an L2CAP CoC channel object in the Zephyr Bluetooth host: RX work item is not cancelled on channel teardown](https://agentprime.io/advisories/CVE-2026-19935.md)
  `CVE-2026-19935` · CVE record: zephyrproject zephyr · CVSS 7.5 High · Not analysed yet · Published 11 Oct 2026 · Tags: Memory corruption
- [NULL pointer dereference in the ESP32 I2S driver when triggering an unsupported direction](https://agentprime.io/advisories/CVE-2026-19737.md)
  `CVE-2026-19737` · CVE record: zephyrproject zephyr · CVSS 5.5 Medium · Not analysed yet · Published 11 Oct 2026 · Tags: Memory corruption
- [Out-of-bounds read when the zbus proxy agent IPC backend logs a rejected peer frame's channel name](https://agentprime.io/advisories/CVE-2026-18418.md)
  `CVE-2026-18418` · CVE record: zephyrproject zephyr · CVSS 3.4 Low · Not analysed yet · Published 11 Oct 2026 · Tags: Memory corruption
- [Out-of-bounds write in the NXP MCUX TRNG entropy driver for non-word-multiple request lengths](https://agentprime.io/advisories/CVE-2026-19736.md)
  `CVE-2026-19736` · CVE record: zephyrproject zephyr · CVSS 7.8 High · Not analysed yet · Published 11 Oct 2026 · Tags: Memory corruption
- [Predictable TCP initial sequence numbers when the RFC 6528 secret key generation fails silently in the Zephyr TCP stack](https://agentprime.io/advisories/CVE-2026-19735.md)
  `CVE-2026-19735` · CVE record: zephyrproject zephyr · CVSS 4.8 Medium · Not analysed yet · Published 11 Oct 2026 · Tags: Weak cryptography or TLS
- [Out-of-bounds read in IPv6 route forwarding when the nexthop neighbor has no link-layer address](https://agentprime.io/advisories/CVE-2026-19577.md)
  `CVE-2026-19577` · CVE record: zephyrproject zephyr · CVSS 7.1 High · Not analysed yet · Published 11 Oct 2026 · Tags: Memory corruption
- [Stack out-of-bounds write in the Goodix GT911 touch controller driver from an unvalidated device-reported touch point count](https://agentprime.io/advisories/CVE-2026-19576.md)
  `CVE-2026-19576` · CVE record: zephyrproject zephyr · CVSS 6.8 Medium · Not analysed yet · Published 11 Oct 2026 · Tags: Memory corruption
- [Unbounded variable-length array in fuel gauge syscall verifiers allows kernel stack overflow from user mode](https://agentprime.io/advisories/CVE-2026-19669.md)
  `CVE-2026-19669` · CVE record: zephyrproject zephyr · CVSS 7.8 High · Not analysed yet · Published 11 Oct 2026 · Tags: Memory corruption
- [Type confusion in the device_deinit system call allows user-mode threads to execute arbitrary kernel code](https://agentprime.io/advisories/CVE-2026-19575.md)
  `CVE-2026-19575` · CVE record: zephyrproject zephyr · CVSS 7.8 High · Not analysed yet · Published 9 Oct 2026 · Tags: Memory corruption

Older: <https://agentprime.io/advisories/technology/zephyr.md?cursor=WyIyMDI2LTEwLTA5VDA3OjE2OjQ3Ljk5NTAwMFoiLCJDVkUtMjAyNi0xOTU3NSJd>

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- Every list: <https://agentprime.io/advisories.md>, critical: <https://agentprime.io/advisories/critical.md>; by weakness: <https://agentprime.io/advisories/tag/sql-injection.md> and the other tags in <https://agentprime.io/llms.txt>; by technology: `/advisories/technology/<slug>.md` (`fortinet-fortimail`)

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The web page: <https://agentprime.io/advisories/technology/zephyr/>. Everything for agents: <https://agentprime.io/llms.txt>.
