Local Buffer Overflow Vulnerability in Free Download Manager by Free Download Manager
CVE-2018-25304

8.6HIGH

Key Information:

Vendor

Filehippo

Status
Free Download Manager
Vendor
CVE Published:
29 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25304?

Free Download Manager version 2.0 Built 417 exposes a local buffer overflow vulnerability within its URL import functionality. By crafting a malicious URL file, attackers can exploit this vulnerability through the File > Import > Import lists of downloads menu. This leads to a buffer overflow in the Location header response, allowing attackers to overwrite the structured exception handler (SEH) chain, potentially executing arbitrary code in the context of the application. Users of the affected version are advised to update to mitigate this security risk.

Affected Version(s)

Free Download Manager 2.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-25304 - Proof of Concept

References

https://www.exploit-db.com/exploits/44499
exploit
https://filehippo.com/download_free_download_manager/925/
product
https://www.vulncheck.com/advisories/free-download-manage...
third-party-advisory

CVSS V4

Score:
8.6
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Marwan Shamel
.