Easy File Sharing Web Server 7.2 Local SEH Overflow
Priority HIGH 72CWE-787Published · Updated
Key facts
- Attack vector
- Local
- 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-787 and the CVSS impact.
Summary
Easy File Sharing Web Server 7.2 contains a local structured exception handling buffer overflow vulnerability that allows local attackers to execute arbitrary code by creating a malicious username. Attackers can craft a username with a payload containing 4059 bytes of padding followed by a nseh value and seh pointer to trigger the overflow when adding a new user account.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00171 6th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| Sharing-File | Easy File Sharing Web Server | 7.2 | — | No fix listed | CNA |
- Easy File Sharing Web Server VendorSharing-File 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-2019-25466
- 2026-10-03 Alias added: GHSA-4c84-63pp-c7rv
References
Exploit 1
More Sharing-File vulnerabilities
- TI-2018-06577 Stack-based buffer overflow in Easy File Sharing (EFS) Web Server 7.2 allows remote… CVSS 3.0CRITICAL 9.8
- TI-2018-13397 An issue was discovered in Easy File Sharing (EFS) Web Server 7.2. CVSS 3.0CRITICAL 9.8
- TI-2009-04565 Directory traversal vulnerability in thumbnail.ghp in Easy File Sharing (EFS) Web Server… CVSS 2.0MEDIUM 5.0
Sources
- CVE-2019-25466 · CVE Program
- CVE-2019-25466 · NVD
- FIRST EPSS
- GHSA-4c84-63pp-c7rv · 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