CVE-2026-63958

Katalog CVE

CVSS 5.5 · Medium EPSS 0,16%

Kerentanan pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: validate connector number in ucsi_connector_change() The connector number in a UCSI CCI notification is a 7-bit field supplied by the PPM. ucsi_connector_change() uses it to index the ucsi->connector[] array without checking it against the number of connectors the PPM reported at init time, so a buggy or malicious PPM (EC firmware, or an I2C-attached UCSI controller on the ccg / stm32g0 / glink transports) can drive schedule_work() on memory past the end of the array. Reject connector numbers that are zero or exceed cap.num_connectors before dereferencing the array.

Rincian

Terbit di NVD

19 Juli 2026

Terakhir diubah

30 Oktober 2026

Status NVD

Analyzed

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 5,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/0edd1e21587b0483c7ceb993b9fb9668bbef7433 patch
• https://git.kernel.org/stable/c/156b6f0aec6108909b0c4aedc78865b12766b347 patch
• https://git.kernel.org/stable/c/288a81a8507052bcfbf884d39a463c44c42c5fd9 patch
• https://git.kernel.org/stable/c/5af2719b460ab904c504fc069d1dd2a3aa2b22b0 patch
• https://git.kernel.org/stable/c/bd24d92af4ae021b6209f28e9a57e1bf2260d4fd patch
• https://git.kernel.org/stable/c/cea949203faef9cb783adc7b978cce056271e057 patch