CVE-2026-48697_CVE-2026-48697

7.4 / 10

HIGH

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

Description

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.

Basic Information

ID CVE-2026-48697

Source mitre

Published May 26, 2026 at 00:00

Modified May 26, 2026 at 20:30

Affected Product

Vendor n/a

Product n/a

Version n/a

Affected Versions n/a n/a n/a

CWE Classification

CWE-295

References

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    "published": "2026-05-26T00:00:00.000Z",
    "modified": "2026-05-26T20:30:08.127Z",
    "type": "cve",
    "title": "CVE-2026-48697",
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    "references": "https://github.com/pavel-odintsov/fastnetmon\nhttps://github.com/pavel-odintsov/fastnetmon/blob/master/src/fast_library.cpp\nhttps://lorikeetsecurity.com/blog/fastnetmon-cve-2026-48697-missing-tls-validation",
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