CVE-2026-102693

9.6 CRITICALpublic exploit available

Published 2026-10-16 · Updated 2026-10-16

AI risk analysis

Summary: The RIOT OS contains a buffer overflow vulnerability in its ATWINC15x0 Wi-Fi driver where strcpy is used without bounds checking when copying SSIDs during Wi-Fi scanning. This allows remote attackers to cause memory corruption and potentially execute code or crash devices.
Exploitability: Exploitation is relatively straightforward for nearby attackers who can advertise malformed SSIDs during Wi-Fi scanning, requiring no special privileges or user interaction.
Blast radius: The vulnerability affects IoT devices using the ATWINC15x0 driver with dynamic connect enabled, potentially causing widespread device crashes, denial of service, or remote code execution across connected embedded systems.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to RIOT OS version 2026.04 or later to remediate the buffer overflow in the ATWINC15x0 driver.

wifiembeddedbuffer-overflow

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

RIOT is an open-source microcontroller operating system designed for Internet of Things devices and other embedded systems. Prior to 2026.04, the ATWINC15x0 driver's _atwinc15x0_sta_set_current_ssid function uses strcpy to copy an SSID without checking the destination size. When MODULE_ATWINC15X0_DYNAMIC_CONNECT is enabled, a nearby attacker can advertise a malformed or oversized SSID that is processed during Wi-Fi scanning, causing memory corruption and potentially a hard fault, denial of service, or code execution. This issue is fixed in version 2026.04.

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-120, CWE-121

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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