Buffer overflow in Freshsoftware Netstat Pro

CVE-2019-25637

X-NetStat Pro 5.63 contains a local buffer overflow vulnerability that allows local attackers to execute arbitrary code by overwriting the EIP register through a 264-byte buffer overflow. Attackers can inject shellcode into memory and use an egg hunter technique to locate and execute the payload when the application processes malicious input through HTTP Client or Rules functionality.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (8.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-25637?
CVE-2019-25637 is a high-severity vulnerability in Freshsoftware Netstat Pro, classified under Out-of-bounds Write. CVSS score: 8.4/10. Published 2026-03-24.
How severe is CVE-2019-25637?
High severity. CVSS v3 base score is 8.4 out of 10.