CVE-2014-3791
CriticalPublic exploitStack-based buffer overflow in Easy File Sharing (EFS) Web Server 6.8 allows remote attackers to execute arbitrary code via a long string in a cookie UserID parameter to vfolder.ghp.
Published May 20, 2014 · Updated May 6, 2026
Key Facts
Patch immediately- CVE-2014-3791 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Easy File Sharing Web Server (Efssoft).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 79% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
79%
Higher than 99.5% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
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Description
Stack-based buffer overflow in Easy File Sharing (EFS) Web Server 6.8 allows remote attackers to execute arbitrary code via a long string in a cookie UserID parameter to vfolder.ghp.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Easy File Sharing Web ServerEfssoft | 6.8 | n/a |
Timeline
Publicly disclosed
May 20, 2014
Last updated
May 6, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- exploithttp://blog.techorganic.com/2014/05/14/from-fuzzing-to-0-day
- exploithttp://packetstormsecurity.com/files/126614/Easy-File-Sharing-Web-Server-6.8-Buffer-Overflow.html
- exploitMSF efs_fmws_userid_bof.rb
- exploitExploitDB-33352
- exploit33352
FAQ
Common Questions.
Stack-based buffer overflow in Easy File Sharing (EFS) Web Server 6.8 allows remote attackers to execute arbitrary code via a long string in a cookie UserID parameter to vfolder.ghp.
Affected: Easy File Sharing Web Server (Efssoft) versions 6.8. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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