CVE-2026-102693

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 v3 9.6 CRITICAL

9.6^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 6.0

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/RIOT-OS/RIOT/commit/5209c1b84f9771342f079b7d5d94d8207fdd5f0a
https://github.com/RIOT-OS/RIOT/releases/tag/2026.04
https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-gwgv-6976-hxrg

Configurations

No configuration.

History

16 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-16 17:17

Updated : 2026-10-16 20:17

NVD link : CVE-2026-102693

Mitre link : CVE-2026-102693

CVE.ORG link : CVE-2026-102693

JSON object : View

Products Affected

No product.

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CWE-121

Stack-based Buffer Overflow

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