Threats Tagged 'cve-2026-10642'
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Threats Tagged 'cve-2026-10642'
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CVE-2026-10642: dos in zephyrproject zephyrCVE-2026-10642 0 CVE-2026-10642 is a denial of service vulnerability in the Zephyr project affecting the PL011 UART driver. The issue arises from an unbounded software loop in the pl011_irq_tx_enable() function when CTS hardware flow control is enabled and the CTS line is de-asserted by the connected device. This causes the transmitting thread to spin indefinitely, hanging the execution context and stalling UART transport. The vulnerability impacts availability only and does not affect memory safety, confidentiality, or integrity. It affects Zephyr versions 4.1.0 through 4.4.0. A fix has been implemented to break out of the loop when CTS blocks transmission and to use the CTS modem-status interrupt to resume transmission once CTS is re-asserted. Join the discussion | CVE Database V5 | 06/24/2026, 21:32:05 UTC Added: 06/24/2026, 21:46:05 UTC |
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