Which products and versions are affected by CVE-2006-3952?

Affected: Efs FTP Server (Efs Software) versions 2.0. The full list is in the CVE brief.

Is CVE-2006-3952 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2006-3952 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2006-3952?

Public exploit code is available.

Is there a fix for CVE-2006-3952?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2006-3952 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2006-3952

HighPublic exploit

Stack-based buffer overflow in EFS Software Easy File Sharing FTP Server 2.0 allows remote attackers to execute arbitrary code via a long argument to the PASS command.

Published Aug 1, 2006 · Updated Apr 15, 2026

Key Facts

Patch immediately

CVE-2006-3952 is a high-severity vulnerability (CVSS 7.5 v2) affecting Efs FTP Server (Efs Software).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 67% 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

7.5

AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS (30-day exploit likelihood)

67%

Higher than 99.2% 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

Get the full CVE-2006-3952 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

Stack-based buffer overflow in EFS Software Easy File Sharing FTP Server 2.0 allows remote attackers to execute arbitrary code via a long argument to the PASS command. NOTE: the provenance of this information is unknown; the details are obtained from third party information.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
Efs FTP ServerEfs Software	2.0	n/a

Timeline

Publicly disclosed
Aug 1, 2006
Last updated
Apr 15, 2026

References

5 more references in the full CVE brief

FAQ

Common Questions.

Stack-based buffer overflow in EFS Software Easy File Sharing FTP Server 2.0 allows remote attackers to execute arbitrary code via a long argument to the PASS command.
Affected: Efs FTP Server (Efs Software) versions 2.0. 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.

Is CVE-2006-3952 Running On Your Attack Surface?

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