{"uuid": "69a0a36b-cadd-4256-9e76-0151feadc1be", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-107837", "type": "seen", "source": "https://infosec.exchange/users/cve/statuses/117412263991065697", "content": "CVE-2026-107837 RIOT: Out-of-Bounds Read in RIOT OS 6LoWPAN SFF Fragment Handling RIOT is an open-source microcontroller operating system designed for Internet of Things devices and other embedded systems. In 2026.07 and earlier, _receive() in sys/net/gnrc/network_layer/sixlowpan/gnrc_sixlowpan.c can route an undersized packet into SFF fragment handling after only a minimal payload check. The code then interprets the packet as a sixlowpan_frag_t or larger fragment header without verifying that the packet snip contains the required bytes. A remote attacker can send a malformed 6LoWPAN fragment that causes gnrc_sixlowpan_frag_recv() to read beyond the packet buffer, potentially disclosing memory and crashing the network stack. No fixed repository release is available as of this review.\nhttps://www.cve.org/CVERecord?id=CVE-2026-107837https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-m8mc-q4p7-p8j3https://github.com/RIOT-OS/RIOT/pull/22504https://github.com/RIOT-OS/RIOT/commit/0cae205cd1d110e0b8fce094714598322d56ce2d#RIOT-OS #RIOT#CVE_2026_107837#bot", "creation_timestamp": "2026-10-09T18:02:50.085399Z"}