CVE-2026-68373

A flaw was found in the Linux kernel's at76c50x-usb Wi-Fi driver. A remote attacker could exploit a length underflow vulnerability in the at76guessfreq function by sending a specially crafted Wi-Fi frame. This can cause an out-of-bounds read during the scanning process, potentially leading to a...

CVE-2026-68373

In the Linux kernel, the following vulnerability has been resolved: wifi: at76c50x-usb: avoid length underflow in at76guessfreq at76guessfreq checks only that the received frame is at least a bare 802.11 header 24 bytes before subtracting the fixed management-body offset: len -= eloff; For both...

CVE-2026-68373

Summary: CVE-2026-68373 affects the Linux kernel Wi‑Fi driver at76c50x-usb. A length underflow in at76_guess_freq() can occur when processing truncated beacon/probe response frames, where el_off (36) is subtracted after a minimal 802.11 header check, causing an oversized IE length that leads to a...