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 URL file that, when imported through the File > Import > Import lists of downloads menu, causes a buffer overflow in the Location header response that overwrites the SEH chain and executes arbitrary code.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.002 (3.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 4th percentile — 3.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Filehippo Free Download Manager — versions 2.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/44499 (exploit)
- filehippo.com/download_free_download_manager/925/ (product)
- www.vulncheck.com/advisories/free-download-manager-built-417-local-buffer-overf… (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.