What is CVE-2018-25304?

CVE-2018-25304 is a high-severity vulnerability in Filehippo Free Download Manager, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.4/10. Published 2026-04-29.

How severe is CVE-2018-25304?

High severity. CVSS v3 base score is 8.4 out of 10.

Buffer overflow in Filehippo Free Download Manager

CVE-2018-25304

Free Download Manager 2.0 Build 417 contains a local buffer overflow vulnerability in the URL import functionality that allows attackers to trigger a structured exception handler (SEH) chain exploitation. Attackers can craft a malicious UR…

Vulnerability class: Buffer Overflow

EPSS: 0.000 (4.3th 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

Filehippo Free Download Manager — versions 2.0

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

disclosure@vulncheck.com (exploit)
disclosure@vulncheck.com (product)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2018-25304?: CVE-2018-25304 is a high-severity vulnerability in Filehippo Free Download Manager, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.4/10. Published 2026-04-29.
How severe is CVE-2018-25304?: High severity. CVSS v3 base score is 8.4 out of 10.