VULNERABILITY INTELLIGENCE

CVE-2023-4273

CVSS score6 MEDIUM
EPSS probability0.65%
CISA KEVNot currently listed
Published2023-08-09
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

Description

A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation of the file name reconstruction function, which is responsible for reading file name entries from a directory index and merging file name parts belonging to one file into a single long file name. Since the file name characters are copied into a stack variable, a local privileged attacker could use this flaw to overflow the kernel stack.

Weakness classification

  • secalert@redhat.com: CWE-121
  • nvd@nist.gov: CWE-787

Primary references