CVE-2026-6862

MEDIUM

5.5

Beschreibung

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).

CVE Details

CVSS v3.1 Bewertung5.5

SchweregradMEDIUM

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

AngriffsvektorLOCAL

KomplexitatLOW

Erforderliche PrivilegienNONE

BenutzerinteraktionREQUIRED

Veroffentlicht4/22/2026

Zuletzt geandert4/22/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-674

Referenzen

https://access.redhat.com/security/cve/CVE-2026-6862(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2459982(secalert@redhat.com)

IOC Korrelationen

Keine Korrelationen erfasst

This product uses data from the NVD API but is not endorsed or certified by the NVD.