๐Ÿ›ก๏ธ CVE-2026-31623
๐ŸŸก CVSS 5.5 โ€” Medium โœ… No Known Exploit CWE-120 NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

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.

Details

Severity MEDIUM
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE CWE-120
Public Exploit โœ… No
Source NVD
Published 2026-04-24
Updated 2026-06-02
Modified 2026-06-01

Affected Packages

Software From version Fixed in
linux-kernel 7.0 7.0.1

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