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

CVE-2026-48697

Gravedad CVSS v3.1:
ALTA
Tipo:
CWE-295 Validación incorrecta de certificados
Fecha de publicación:
26/05/2026
Última modificación:
27/05/2026

Descripción

*** Pendiente de traducción *** FastNetMon Community Edition through 1.2.9 does not verify TLS certificates on outbound HTTPS connections. The execute_web_request_secure() function in src/fast_library.cpp creates a boost::asio::ssl::context with tls_client mode and calls set_default_verify_paths() to load CA certificates, but never calls set_verify_mode(boost::asio::ssl::verify_peer). Without this call, OpenSSL performs the TLS handshake without validating the server's certificate chain, making all HTTPS connections vulnerable to man-in-the-middle attacks. This function is used for telemetry reporting to community-stats.fastnetmon.com, which sends system information including CPU model, kernel version, traffic statistics, and software configuration. An attacker can intercept and modify this data or redirect it to a malicious server.

Productos y versiones vulnerables

CPE Desde Hasta
cpe:2.3:a:pavel-odintsov:fastnetmon:*:*:*:*:community:*:*:* 1.2.9 (incluyendo)