CVE-2025-34096 CRITICAL

CVE-2025-34096: Easy File Sharing HTTP Server 7.2 Buffer Overflow via POST to /sendemail.ghp

Vendor Efs Software Inc.
Product Easy File Sharing HTTP Server
Weakness CWE-119
Published July 10, 2025
Last update April 7, 2026

CVSS base score

9.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

A stack-based buffer overflow vulnerability exists in Easy File Sharing HTTP Server version 7.2. The flaw is triggered when a crafted POST request is sent to the /sendemail.ghp endpoint containing an overly long Email parameter. The application fails to properly validate the length of this field, resulting in a memory corruption condition. An unauthenticated remote attacker can exploit this to execute arbitrary code with the privileges of the server process.

Key dates

02Disclosure timeline

July 10, 2025 CVE published
April 7, 2026 Record updated