5.1
CVSS 4.0
Няма данни
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Няма потвърждение
Атакува се
Няма данни
Време до експлоатация
Изисква физически достъп, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката не може да се автоматизира
Описание
Оригинално описание
RT-Thread through 5.3.0 contains a memory corruption vulnerability in the legacy USB CDC virtual COM port driver that aliases rx_ringbuffer as a Serial V2 rt_serial_rx_fifo in _function_enable(). A connected USB host configuring the CDC device triggers writes past the ring buffer into struct vcom members and an invalid rt_free() on close, causing denial of service.
Засегнати продукти
- RT-Thread rt-thread: до 5.3.0
Вид слабост
История
- 12 октомври 2026 Публикувано
Други уязвимости в RT-Thread rt-thread
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-108952
- https://nvd.nist.gov/vuln/detail/CVE-2026-108952
- https://github.com/RT-Thread/rt-thread/issues/11739
- https://github.com/RT-Thread/rt-thread/pull/11770
- https://github.com/RT-Thread/rt-thread/commit/ceef6e0ccd646aef61b907aeb9f29269d1caba50
- https://github.com/RT-Thread/rt-thread/blob/99428a1e7f7447955aa860f7c969273a12095b8f/components/legacy/usb/usbdevice/class/cdc_vcom.c#L518
- https://github.com/RT-Thread/rt-thread
- https://www.vulncheck.com/advisories/rt-thread-through-5.3.0-memory-corruption-via-usb-cdc-vcom-driver