CVE-2014-3791: Stack-based buffer overflow in Easy File Sharing (EFS) Web Server 6.8 allows remote attackers to execute arbit

This week

HIGH 10.0DOWNGRADE

CVE-2014-3791 is a high-severity flaw (CVSS 10.0) affecting easy file sharing web server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Critical severity
EPSS top 1%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	78.7% (top 1%)
CISA exploited list	No
Weakness	CWE-119
Published	2014-05-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: efssoft

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2014-05-20 14:55 UTCPublished CVE record published
2026-06-17 00:08 UTCUpdated Record last modified

efssoft easy file sharing web server DOWNGRADE

Affected: 6.8

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.8

1. Check installed version

apt-cache policy easy-file-sharing-web-server || rpm -q easy-file-sharing-web-server || easy-file-sharing-web-server --version

2. No fixed release: DOWNGRADE to a release before 6.8 (Debian / Ubuntu)

apt-cache madison easy-file-sharing-web-server sudo apt install easy-file-sharing-web-server=<VERSION_BEFORE_6.8> sudo apt-mark hold easy-file-sharing-web-server

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list easy-file-sharing-web-server sudo dnf downgrade easy-file-sharing-web-server-<VERSION_BEFORE_6.8> sudo dnf versionlock add easy-file-sharing-web-server

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: Easy File Sharing Web Server 6.8 - Remote Stack Buffer Overflow
Metasploit: Easy File Management Web Server Stack Buffer Overflow

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2014-3791?

easy file sharing web server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2014-3791 being exploited?

CVE-2014-3791 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2014-3791 affect?

CVE-2014-3791 affects easy file sharing web server. Severity is high (CVSS 10.0). 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.

How urgent is CVE-2014-3791?

Priority 65/100. Critical severity; EPSS top 1%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2018-9059 CRITICAL 9.8 DOWNGRADE Stack-based buffer overflow in Easy File Sharing (EFS) Web Server 7.2 allows remote attackers to execute arbit
CVE-2018-18912 CRITICAL 9.8 DOWNGRADE An issue was discovered in Easy File Sharing (EFS) Web Server 7.2
CVE-2014-9439 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in Easy File Sharing Web Server 6.8 allows remote attackers to inject
CVE-2014-5178 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in Easy File Sharing (EFS) Web Server 6.8 allow remote aut

References

← Back to latest CVEs