VULNERABILITY INTELLIGENCE
CVE-2026-31620
CVSS score4.6 MEDIUM
EPSS probability0.20%
CISA KEVNot currently listed
Published2026-04-24
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: us144mkii: fix NULL deref on missing interface 0 A malicious USB device with the TASCAM US-144MKII device id can have a configuration containing bInterfaceNumber=1 but no interface 0. USB configuration descriptors are not required to assign interface numbers sequentially, so usb_ifnum_to_if(dev, 0) returns will NULL, which will then be dereferenced directly. Fix this up by checking the return value properly.
Weakness classification
- nvd@nist.gov: CWE-476