What is CVE-2026-48684?

CVE-2026-48684 is a medium-severity vulnerability in Pavel-odintsov Fastnetmon, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-05-26.

How severe is CVE-2026-48684?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Out-of-bounds Read in Pavel-odintsov Fastnetmon

CVE-2026-48684

FastNetMon Community Edition through 1.2.9 contains an out-of-bounds read in the NetFlow v9 options template parser. In process_netflow_v9_options_template() (src/netflow_plugin/netflow_v9_collector.cpp), the scope parsing loop (lines 224-…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (13.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L.

Affected products

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

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

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

Frequently asked questions

What is CVE-2026-48684?: CVE-2026-48684 is a medium-severity vulnerability in Pavel-odintsov Fastnetmon, classified under Out-of-bounds Read. CVSS score: 6.5/10. Published 2026-05-26.
How severe is CVE-2026-48684?: Medium severity. CVSS v3 base score is 6.5 out of 10.