CVE-2026-102693

CRITICAL 9.6CVE-2026-102693 · Published 16/10/2026 · updated 16/10/2026

In short

CVE-2026-102693 is a CRITICAL (CVSS 9.6) vulnerability.
Chance of exploitation in the next 30 days (EPSS): 0.23%, higher than 13.3% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
—	No affected product versions are listed for this vulnerability yet.

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.

References

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