CVE-2026-15893: Reachable Assertion

netifipv6calcreachabletime in subsys/net/ip/netif.c derives a randomized ND reachable time from ipv6-basereachabletime as minreachable + sysrand32get % maxreachable - minreachable, where minreachable = base/2 and maxreachable = 3base/2 using integer division. When basereachabletime is 1, both...

CVE-2026-15923: Loop with Unreachable Exit Condition

The Zephyr SDIO subsystem function sdioiorwextendedhelper in subsys/sd/sdio.c finishes transfers with a byte-I/O loop that uses size = MINremaining, func-cis.maxblksize as the per-iteration step. The value func-cis.maxblksize is decoded directly from the SDIO card's CIS FUNCE tuple in sdiodecodec...

CVE-2026-13481

The IEEE 1588 PTP management-message parser in subsys/net/lib/ptp/tlv.c mishandles the PTPMGMTTIME management id. In tlvmgmtpostrecv, the PTPMGMTTIME case casts mgmttlv-data to a 10-byte struct ptptimestamp and reads it then byte-swaps and writes it back without first checking that the TLV data...

CVE-2026-13480

The LoRaWAN TS004 Fragmented Data Block Transport handler fragtransportpackagecallback in subsys/lorawan/services/fragtransport.c parses downlink command bytes without validating that enough payload bytes remain before each access. The loop's only bound is rxpos fragsize, capped at...

CVE-2026-13480: Improper Input Validation

The LoRaWAN TS004 Fragmented Data Block Transport handler fragtransportpackagecallback in subsys/lorawan/services/fragtransport.c parses downlink command bytes without validating that enough payload bytes remain before each access. The loop's only bound is rxpos fragsize, capped at...

CVE-2026-13217: NULL Pointer Dereference

The OCPP 1.6 client in subsys/net/lib/ocpp/ocpp.c reconstructs a session handle and PDU id from the uid field of a CALLRESULT message. In ocppprocessservermsg the code calls atoistrtokruid, "-", &tmp without checking the strtokr return value. When the server-supplied uid is empty or contains no -...

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: NULL Pointer Dereference

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-2026-12634: Out-of-bounds Write

The NVS backend of the Zephyr settings subsystem subsys/settings/src/settingsnvs.c reads stored setting-name entries into fixed 74-byte stack buffers and NUL-terminates them with bufrc = '\0', where rc is the return value of nvsread. Per its contract, nvsread returns the full stored entry length...

CVE-2026-12632: Out-of-bounds Read

Zephyr's Precision Time Protocol receive handler ptpmsgpostrecv in subsys/net/lib/ptp/msg.c takes the 4-bit message type straight off the wire via ptpmsgtype msg-header.typemajorsdoid & 0xF, range 0-15 and uses it to index the msgsize table. That table only defines entries up to PTPMSGMANAGEMENT...

CVE-2026-12630: Out-of-bounds Read

Zephyr's 6LoWPAN IP Header Compression IPHC uncompression code contains an out-of-bounds read in getihpcinlinedsize subsys/net/ip/6lo.c. The destination inline size is looked up in dainlinesizetable, which has 13 entries, using an index built from the M, DAC and DAM bits of the received IPHC...

CVE-2026-12364: Untrusted Pointer Dereference

The user-space system-call verifier zvrfyzlogmsgstaticcreate in subsys/logging/logmsg.c was a pure pass-through: it forwarded the caller-supplied source, desc, package, and data arguments directly to the kernel-mode implementation zimplzlogmsgstaticcreate without performing any of the mandatory...

CVE-2026-8718: Out-of-bounds Write

tlsoptdtlspeerconnectionidvalueget in subsys/net/lib/sockets/socketstls.c, which handles getsockoptSOLTLS, TLSDTLSPEERCIDVALUE, passed the caller-supplied optval directly to mbedtlssslgetpeercid without verifying the buffer was at least MBEDTLSSSLCIDOUTLENMAX default 32 bytes. mbedtlssslgetpeerci...

PT-2026-69949

Name of the Vulnerable Software and Affected Versions UpdateHub OTA client affected versions not specified Description An out-of-bounds and uninitialized-memory read exists in the z impl updatehub probe function within subsys/mgmt/updatehub/updatehub.c. The issue occurs when a probe response from...

CVE-2026-11812: Concurrent Execution using Shared Resource with Improper Synchronization

The UpdateHub management subsystem subsys/mgmt/updatehub/updatehub.c drives every update operation through a single file-scope ctx structure that holds the CoAP block context, payload buffer, status code, socket, and a one-element poll-fd array fds1. Access to ctx was not serialized, and preparef...

PT-2026-67714

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description A use-after-free issue exists in the Bluetooth host ATT layer within the subsys/bluetooth/host/att.c file. The system associates in-flight ATT TX buffers with...

CVE-2026-10849: Heap-based Buffer Overflow

The hawkBit device management client in subsys/mgmt/hawkbit accumulates the body of an HTTP response from the update server into a heap buffer in responsejsoncb subsys/mgmt/hawkbit/hawkbit.c. The buffer is sized to hold the received body bytes but reserves no space for a terminating NUL. When the...

CVE-2026-10686: Loop with Unreachable Exit Condition

Zephyr's IPv6 forwarding path re-sent routed unicast packets without ever decrementing the IPv6 hop limit. Both routing branches of ipv6routepacket subsys/net/ip were affected: the explicit-route path netroutepacket and the on-link cross-interface path netroutepacketif. Each set the packet...

CVE-2026-10682

The userspace verifier zvrfylogfilterset for the logfilterset syscall in subsys/logging/logmgmt.c performed a signed comparison against the int16t srcid parameter: srcid int16tlogsrccntgetdomainid. Any negative value for srcid e.g. -1 trivially satisfied this check and was forwarded into...

CVE-2026-64183 efi: Allocate runtime workqueue before ACPI init

In the Linux kernel, the following vulnerability has been resolved: efi: Allocate runtime workqueue before ACPI init Since commit 5894cf571e14 "acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers" ACPI PRM calls are delegated to a workqueue which runs in a kernel thread, making it easier to...