VULNERABILITY INTELLIGENCE

CVE-2021-3504

CVSS score5.4 MEDIUM
EPSS probability1.85%
CISA KEVNot currently listed
Published2021-05-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Description

A flaw was found in the hivex library in versions before 1.3.20. It is caused due to a lack of bounds check within the hivex_open function. An attacker could input a specially crafted Windows Registry (hive) file which would cause hivex to read memory beyond its normal bounds or cause the program to crash. The highest threat from this vulnerability is to system availability.

Weakness classification

  • secalert@redhat.com: CWE-125

Primary references