Vulnerability in Pavel-odintsov Fastnetmon

CVE-2026-48693

FastNetMon Community Edition through 1.2.9 is vulnerable to a local symlink attack via predictable file paths in /tmp. The statistics file path defaults to '/tmp/fastnetmon.dat' (src/fastnetmon.cpp line 159). The print_screen_contents_into…

EPSS: 0.000 (7.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-48693?
CVE-2026-48693 is a medium-severity vulnerability in Pavel-odintsov Fastnetmon, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2026-05-26.
How severe is CVE-2026-48693?
Medium severity. CVSS v3 base score is 5.5 out of 10.