VULNERABILITY INTELLIGENCE

CVE-2026-63898

CVSS score7.8 HIGH
EPSS probability0.18%
CISA KEVNot currently listed
Published2026-07-19
Last modified2026-10-30
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: USB: serial: mct_u232: fix memory corruption with small endpoint The driver overrides the maximum transfer size for a specific device which only accepts 16 byte packets for its 32 byte bulk-out endpoint. Make sure to never increase the maximum transfer size to prevent slab corruption should a malicious device report a smaller endpoint max packet size than expected.

Weakness classification

  • nvd@nist.gov: CWE-787

Primary references