DEBIAN-CVE-2026-48697
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-48697
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48697.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-48697
- Upstream
- Published
- 2026-05-26T17:16:53Z
- Modified
- 2026-09-14T17:03:16Z
- Severity
-
- 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
Affected packages
Debian:12 / fastnetmon
Package
- Name
- fastnetmon
- Purl
- pkg:deb/debian/fastnetmon?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Debian:13 / fastnetmon
Package
- Name
- fastnetmon
- Purl
- pkg:deb/debian/fastnetmon?arch=source&distro=trixie
Debian:14 / fastnetmon
Package
- Name
- fastnetmon
- Purl
- pkg:deb/debian/fastnetmon?arch=source&distro=forky