CVEvulnerability

CVE-2026-6862

5.5 MEDIUM Published 2026-04-22 Modified 2026-10-26 Official page ↗
Status
Modified
Published
2026-04-22
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weaknesses
CWE-674

Description

A flaw was found in libefiboot, a component of efivar. The device path node parser in libefiboot fails to validate that each node's Length field is at least 4 bytes, which is the minimum size for an EFI (Extensible Firmware Interface) device path node header. A local user could exploit this vulnerability by providing a specially crafted device path node. This can lead to infinite recursion, causing stack exhaustion and a process crash, resulting in a denial of service (DoS).

Affected configurations

• ubuntu libefiboot

Related

Weakness · CWE (1)

  • CWE-674 Uncontrolled Recursion weakness

References