What is CVE-2026-48692?

CVE-2026-48692 is a high-severity vulnerability in Pavel-odintsov Fastnetmon, classified under Missing Authentication for Critical Function. CVSS score: 8.1/10. Published 2026-05-26.

How severe is CVE-2026-48692?

High severity. CVSS v3 base score is 8.1 out of 10.

Auth bypass in Pavel-odintsov Fastnetmon

CVE-2026-48692

FastNetMon Community Edition through 1.2.9 exposes a gRPC API server on port 50052 with no authentication mechanism. The server is initialized with grpc::InsecureServerCredentials() (src/fastnetmon.cpp line 477) and a source code comment e…

Vulnerability class: Broken Authentication

EPSS: 0.000 (14.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Pavel-odintsov Fastnetmon
N/a — versions n/a

Weakness classification (CWE)

CWE-306 — Missing Authentication for Critical Function

References

cve@mitre.org (Product)
cve@mitre.org (Product)
cve@mitre.org (Product)
cve@mitre.org (Third Party Advisory)

Frequently asked questions

What is CVE-2026-48692?: CVE-2026-48692 is a high-severity vulnerability in Pavel-odintsov Fastnetmon, classified under Missing Authentication for Critical Function. CVSS score: 8.1/10. Published 2026-05-26.
How severe is CVE-2026-48692?: High severity. CVSS v3 base score is 8.1 out of 10.