CVE-2026-6862

Katalog CVE

CVSS 5.5 · Medium EPSS 0,17%

Kerentanan Uncontrolled Recursion pada ubuntu libefiboot. Skor CVSS 3.1 5.5 (Medium) menurut redhat.com.

Deskripsi (NVD)

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).

Rincian

Terbit di NVD

22 April 2026

Terakhir diubah

21 September 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber redhat.com
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-674: Uncontrolled Recursion

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,4% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2026-6862 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2459982 issue tracking · advisory pihak ketiga
• https://access.redhat.com/errata/RHSA-2026:69321