Skip to content
Noroxi
CVE-2006-4318· NVD / CVE Program· CNA mitre

Buffer overflow in WFTPD Server 3.23 allows remote attackers to execute arbitrary code via long SIZE commands.

Noroxi assessment

Priority: Plan (action score 45/100)

  • A ready-made attack module is public (Metasploit); exploiting it takes no special expertise.
  • Probability of exploitation in the next 30 days: 62.1% (FIRST EPSS); higher than 99.1% of all records.
  • No special conditions are required; it is repeatable.
  • According to the record, no fixed version is available yet.

Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Weaponized exploit exists
  • No fixed version yet

Follow it and we'll tell you in the daily email digest when the record enters KEV, gets exploit code, is updated (including a fix) or its EPSS rises 20 points in a week. Connect a webhook and KEV listings and weaponized exploits arrive instantly.

Sign up with email · Have an account? Sign in

Free account, no card. Unfollow any time.

Is your version affected? Check it
MediumCVSS 6.5 · v2.0—Weaponized No fix recorded
Published
Aug 23, 2006
Updated
Jun 16, 2026
EPSS
62.1% · 99th percentile
CWE
—

Report tools

JSON

Action score

45

Plan

Add it to your regular patch cycle.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
19 / 30 · 62.1%

Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

We use this product, ask for help

Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
texas imperial softwarewftpd

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • texas imperial software wftpd3.23

Same product

texas imperial software: all records

Other highest-scoring records for the same primary product.

  • CVE-1999-0950Buffer overflow in WFTPD FTP server allows remote attackers to gain root access via a series of MKD and CWD commands that create nested dire
    42Plan
  • CVE-2001-0694Directory traversal vulnerability in WFTPD 3.00 R5 allows a remote attacker to view arbitrary files via a dot dot attack in the CD command.
    30Monitor
  • CVE-2004-0340Stack-based buffer overflow in WFTPD Pro Server 3.21 Release 1, Pro Server 3.20 Release 2, Server 3.21 Release 1, and Server 3.10 allows loc
    28Monitor
  • CVE-2006-5826Buffer overflow in Texas Imperial Software WFTPD Pro Server 3.23.1.1 allows remote authenticated users to execute arbitrary code or cause a
    26Monitor
  • CVE-2000-0645WFTPD and WFTPD Pro 2.41 allows remote attackers to cause a denial of service by using the RESTART (REST) command and writing beyond the end
    26Monitor
  • CVE-2000-0647WFTPD and WFTPD Pro 2.41 allows remote attackers to cause a denial of service by executing an MLST command before logging into the server.
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

Weaponized

A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.

Evidence

  • Metasploit module ×1
  • Exploit-DB entry ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Exploit-DB entryremote2006-08-21
Exploit-DB entryremote2010-06-22
Metasploit moduleexploit/windows/ftp/wftpd_sizeTexas Imperial Software WFTPD 3.23 SIZE Overflowexploit2006-08-23

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. First PoC-3 d
  2. Metasploit-1 d
  3. Published
  4. TodayOct 12, 2026+7355 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • No special conditions are required; it is repeatable.

If successful

Confidentiality
P · data can be read
Integrity
P · data or configuration can be modified
Availability
P · the service can be disrupted
Attack complexity
Low
Confidentiality impact
P
Integrity impact
P
Availability impact
P

Weakness class (CWE)

—

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records