What is CVE-2026-10642?

CVE-2026-10642 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 6.5/10. Published 2026-06-24.

How severe is CVE-2026-10642?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Zephyrproject Zephyr

CVE-2026-10642

The Zephyr PL011 UART driver (drivers/serial/uart_pl011.c) contains an unbounded software loop in pl011_irq_tx_enable() that repeatedly invokes the interrupt-driven application callback while the TX interrupt mask bit (PL011_IMSC_TXIM) is…

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Zephyrproject Zephyr — versions 4.1.0

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

vulnerabilities@zephyrproject.org (patch)
vulnerabilities@zephyrproject.org

Frequently asked questions

What is CVE-2026-10642?: CVE-2026-10642 is a medium-severity vulnerability in Zephyrproject Zephyr, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 6.5/10. Published 2026-06-24.
How severe is CVE-2026-10642?: Medium severity. CVSS v3 base score is 6.5 out of 10.