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Vulnerability Intelligence

CVE-2006-4847

MediumPublic exploit

Multiple buffer overflows in Ipswitch WS_FTP Server 5.05 before Hotfix 1 allow remote authenticated users to execute arbitrary code via long (1) XCRC, (2) XSHA1, or (3) XMD5 commands.

Published Sep 18, 2006 · Updated Apr 15, 2026

Key Facts

Patch immediately
  • CVE-2006-4847 is a medium-severity vulnerability (CVSS 6.5 v2) affecting Ws FTP Server (Ipswitch).
  • It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
  • EPSS estimates a 86% probability of exploitation in the next 30 days.
  • Fixed versions are available, including progress ws ftp server 5.05, Ws FTP Server 5.05.
  • Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v2

6.5

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

EPSS (30-day exploit likelihood)

86%

Higher than 99.7% 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-2006-4847 brief as a PDF

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Description

Multiple buffer overflows in Ipswitch WS_FTP Server 5.05 before Hotfix 1 allow remote authenticated users to execute arbitrary code via long (1) XCRC, (2) XSHA1, or (3) XMD5 commands.

Affected Products

27 affected entries in total
ProductAffected versionsFixed in
Ws FTP ServerIpswitch1.0.1eval, 1.0.2eval, 3.0_1, 4.01, 5.02, 5.03, 1.0.1, 1.0.1.e5.05

Patched Releases

progress ws ftp server

5.05

Timeline

  1. Publicly disclosed

    Sep 18, 2006

  2. Last updated

    Apr 15, 2026

References

4 more references in the full CVE brief

FAQ

Common Questions.

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