CVE-2025-39760

In the Linux kernel, the following vulnerability has been resolved: usb: core: config: Prevent OOB read in SS endpoint companion parsing usb_parse_ss_endpoint_companion() checks descriptor type before length, enabling a potentially odd read outside of the buffer size. Fix this up by checking the size first before looking at any of the fields in the descriptor.

CVSS 3.1

7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)

CWE

CWE-125

Published

2025-09-11

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• debian:debian_linux
• linux:linux_kernel

References

• https://git.kernel.org/stable/c/058ad2b722812708fe90567875704ae36563e33b
• https://git.kernel.org/stable/c/4fe6f472f0beef4281e6f03bc38a910a33be663f
• https://git.kernel.org/stable/c/5badd56c711e2c8371d1670f9bd486697575423c
• https://git.kernel.org/stable/c/5c3097ede7835d3caf6543eb70ff689af4550cd2
• https://git.kernel.org/stable/c/9512510cee7d1becdb0e9413fdd3ab783e4e30ee

Check your stackJSON