Buffer overflow in Pavel-odintsov Fastnetmon

CVE-2026-48696

FastNetMon Community Edition through 1.2.9 has a buffer overflow, a different vulnerability than CVE-2026-48686 and CVE-2026-48689.

Vulnerability class: Buffer Overflow

EPSS: 0.000 (4.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-48696?
CVE-2026-48696 is a medium-severity vulnerability in Pavel-odintsov Fastnetmon, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 6.2/10. Published 2026-05-26.
How severe is CVE-2026-48696?
Medium severity. CVSS v3 base score is 6.2 out of 10.