CVE-2025-34096

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.

CVSS v4.0

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS

1.54% chance of exploitation in the next 30 days, 73th percentile

Published

2025-07-10

Updated

2026-04-07

Proof-of-concept exploits (2)

• https://www.exploit-db.com/exploits/42186
• TheMalwareGuardian/CVE-2025-34096

Metasploit modules (1)

• rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/easyfilesharing_pos…

References

• CVE Record
• NVD entry

Related

• CVE-2002-1120
• CVE-2003-0264
• CVE-2007-1567
• CVE-2017-14980
• CVE-2018-18912
• CVE-2020-13768