CVE-2026-56117: dhcpcd project dhcpcd

csirt@kutim:~/threat-intel/cve/CVE-2026-56117

CVSS 5.5 · Medium EPSS 0,14%

Kerentanan Use After Free pada dhcpcd project dhcpcd. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

dhcpcd through 10.3.2, fixed in commit 78ea09e, contains a heap use-after-free vulnerability in the control socket handling within src/control.c that allows local unprivileged attackers to trigger memory corruption when privilege separation is disabled. Attackers can connect to the control socket and send a privileged command such as -x, causing control_recvdata() to free the client object while the same READ+HANGUP event subsequently reaches control_hangup() with the stale pointer, resulting in a use-after-free condition exploitable in deployments using --disable-privsep or where privsep initialization has failed with the control socket operating in mode 0666.

Rincian

Terbit di NVD: 23 Juni 2026
Terakhir diubah: 14 Juli 2026
Status NVD: Analyzed
CVSS 3.1: 5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-416: Use After Free
EPSS (30 hari): 0,14% peluang dieksploitasi; lebih tinggi dari 2,6% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
dhcpcd project	dhcpcd	Semua versi hingga 10.3.2

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.