CVE-2026-25139
Critical · 9.1CVSS
9.1
EPSS
0.6%
Published
Feb 4, 2026
CISA due date
—
The record
RIOT is an open-source microcontroller operating system, designed to match the requirements of Internet of Things (IoT) devices and other embedded devices. In version 2025.10 and prior, multiple out-of-bounds read allow any unauthenticated user, with ability to send or manipulate input packets, to read adjacent memory locations, or crash a vulnerable device running the 6LoWPAN stack. The received packet is cast into a sixlowpan_sfr_rfrag_t struct and dereferenced without validating the packet is large enough to contain the struct object. At time of publication, no known patch exists.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|
Related vulnerabilities
- CVE-2026-92824 A flaw was found in libmodulemd. CWE-125
- CVE-2026-114038 A flaw was found in device-mapper-multipath. CWE-125
- CVE-2026-112896 Pillow is a Python imaging library. CWE-125
- CVE-2026-112278 rdesktop through 1.9.0 contains a heap out-of-bounds read vulnerability in… CWE-125
- CVE-2026-112273 libtins through 4.6 contains a heap out-of-bounds read vulnerability in DNS::compose_name… CWE-125
- CVE-2026-112073 A vulnerability was identified in Tencent ncnn up to 44b02dabdcf97499281a4692ebd65bad73dc… CWE-125
- CVE-2026-112020 LodePNG through 20261006 contains a heap out-of-bounds read vulnerability in… CWE-125
- CVE-2026-88842 A flaw was found in BusyBox dpkg. CWE-125