CVE-2026-31623

Katalog CVE

CVSS 5.5 · Medium EPSS 0,17%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete() A malicious USB device claiming to be a CDC Phonet modem can overflow the skb_shared_info->frags[] array by sending an unbounded sequence of full-page bulk transfers. Drop the skb and increment the length error when the frag limit is reached. This matches the same fix that commit f0813bcd2d9d ("net: wwan: t7xx: fix potential skb->frags overflow in RX path") did for the t7xx driver.

Rincian

Terbit di NVD

24 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Modified

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

Jenis kelemahan (CWE)

CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/600dc40554dc5ad1e6f3af51f700228033f43ea7 patch
• https://git.kernel.org/stable/c/9989938d13cc5ba8447eeed5a61acfcf61bc6801 patch
• https://git.kernel.org/stable/c/a23b1b1aaf41e174181d5853a70e65d4d01e648c patch
• https://git.kernel.org/stable/c/c183d5775129a0a7495bd61a6e57ec230dcf01e5 patch
• https://git.kernel.org/stable/c/d4e1946bea8d6441835eb3fd09b19237ba366a6f patch
• https://git.kernel.org/stable/c/ebf75c6301c4972a87542ebf2d994c6391eb5d46 patch
• https://git.kernel.org/stable/c/0c5c65a17db729fc63ab656bdaaf0e675a9dbeac
• https://git.kernel.org/stable/c/6053620fdbcd89fa7e755644efdaab78e0daaae7
• https://git.kernel.org/stable/c/6807ff49bf796b3823b1e29f97b69316a40a9a94