// For flags

CVE-2025-34096

Easy File Sharing HTTP Server 7.2 Buffer Overflow via POST to /sendemail.ghp

Severity Score

9.3
*CVSS v4

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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.

*Credits: bl4ck h4ck3r
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
High
None
Integrity
High
None
Availability
High
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2025-04-15 CVE Reserved
  • 2025-07-10 CVE Published
  • 2025-07-11 CVE Updated
  • 2025-07-11 EPSS Updated
  • 2025-07-11 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
  • CAPEC-10: Buffer Overflow via Environment Variables
  • CAPEC-137: Parameter Injection
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
EFS Software Inc.
Search vendor "EFS Software Inc."
 Easy File Sharing HTTP Server
Search vendor "EFS Software Inc." for product "Easy File Sharing HTTP Server"
 7.2
Search vendor "EFS Software Inc." for product "Easy File Sharing HTTP Server" and version "7.2"
en
Affected