CVE-2026-120740

low

Description

A flaw was found in hivex. By supplying a specially crafted Windows registry hive file, an attacker can trigger an out-of-bounds memory read when hivex parses registry values containing malformed large data block lists. This issue can cause the application processing the registry file to crash, resulting in a Denial of Service (DoS).

References

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-115639

https://bugzilla.redhat.com/show_bug.cgi?id=2565405

https://access.redhat.com/security/cve/CVE-2026-120740

Details

Source: Mitre, NVD

Published: 2026-11-02

Updated: 2026-11-02

Risk Information

CVSS v2

Base Score: 1.7

Vector: CVSS2#AV:N/AC:H/Au:M/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 2

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

Severity: Low