Local Buffer Overflow Vulnerability in Easy File Sharing Web Server by Easy Software Products
CVE-2019-25466

8.6HIGH

Key Information:

Vendor

Sharing-file

Status
Easy File Sharing Web Server
Vendor
CVE Published:
11 March 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-25466?

The Easy File Sharing Web Server 7.2 is vulnerable to a local structured exception handling buffer overflow, enabling attackers to execute arbitrary code. An attacker can exploit this vulnerability by creating a specially crafted username with a payload that consists of 4059 bytes of padding, followed by a nseh value and a seh pointer. This carefully constructed username triggers the buffer overflow when a new user account is added, potentially compromising system integrity.

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Affected Version(s)

Easy File Sharing Web Server 7.2

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-2019-25466 - Proof of Concept

References

https://www.exploit-db.com/exploits/47411
exploit
https://www.vulncheck.com/advisories/easy-file-sharing-we...
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

x00pwn
JSON
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