Easy File Sharing HTTP Server 7.2 Buffer Overflow via POST to /sendemail.ghp
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| EFS Software | Easy File Sharing HTTP Server | 7.2 | — | No fix listed | CNA |
- Easy File Sharing HTTP Server VendorEFS Software Affected 7.2 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-34096
- 2026-10-03 Alias added: GHSA-j62r-9gm4-h7vx
References
More EFS Software vulnerabilities
- TI-2006-03828 Stack-based buffer overflow in EFS Software Easy File Sharing FTP Server 2.0 allows… CVSS 2.0HIGH 7.5
- TI-2004-02336 chat.ghp in Easy Chat Server 1.2 allows remote attackers to cause a denial of service… CVSS 2.0MEDIUM 5.0
- TI-2023-04147 Easy Chat Server Stack-based buffer overflow vulnerability CVSS 3.1CRITICAL 9.8
- TI-2023-04144 Easy Address Book Web Server Buffer overflow vulnerability CVSS 3.1CRITICAL 9.8
- TI-2006-01126 Format string vulnerability in Easy File Sharing (EFS) Web Server 3.2 allows remote… CVSS 2.0HIGH 7.8
- TI-2006-06676 Easy Chat Server 2.1 stores sensitive information under the web root with insufficient… CVSS 2.0HIGH 7.8
Sources
- CVE-2025-34096 · CVE Program
- CVE-2025-34096 · NVD
- FIRST EPSS
- GHSA-j62r-9gm4-h7vx · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences