CVE-2026-13479

CVE-2026-13479 is an out-of-bounds read in the LoRaWAN clock-synchronization service of Zephyr RTOS (subsys/lorawan/services/clock_sync.c). When processing the CLOCK_SYNC_CMD_APP_TIME (AppTimeAns) downlink, the handler reads a 4-byte time correction and 1-byte token without verifying that 5 bytes...

CVE-2026-13479 Out-of-bounds read in LoRaWAN clock-sync AppTimeAns downlink handler

The LoRaWAN application-layer clock-synchronization service parses downlinks in clocksyncpackagecallback subsys/lorawan/services/clocksync.c. Its command loop only guarantees that the one-byte command id is in bounds; for the CLOCKSYNCCMDAPPTIME AppTimeAns command the handler then reads a 4-byte...