Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

CVE-2026-43620

Gravedad CVSS v4.0:
MEDIA
Tipo:
CWE-125 Lectura fuera de límites
Fecha de publicación:
20/05/2026
Última modificación:
21/05/2026

Descripción

*** Pendiente de traducción *** Rsync version 3.4.2 and prior contain a receiver-side out-of-bounds array read vulnerability in recv_files() in receiver.c that allows a malicious rsync server to crash the rsync client process. Attackers can exploit the vulnerability by setting CF_INC_RECURSE in compatibility flags and sending a specially crafted file list where the first sorted entry is not the leading dot directory, followed by a transfer record with ndx=0 and an iflag word without ITEM_TRANSFER, causing the receiver to read 8 bytes before the allocated pointer array and dereference an invalid pointer at an unmapped address, resulting in a deterministic SIGSEGV crash of the rsync client.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:samba:rsync:*:*:*:*:*:*:*:* 3.4.2 (incluyendo)