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CVE-2005-4459

35
FAUCET Score

CVE-2005-4459 describes a critical heap-based buffer overflow vulnerability affecting VMWare Workstation 5.5, GSX Server 3.2, ACE 1.0.1, and Player 1.0. This flaw in the NAT networking components (vmnat.exe and vmnet-natd) allows remote authenticated attackers, including guest users, to execute arbitrary code by sending specially crafted EPRT and PORT FTP commands. With a CVSS score of 10.0, this vulnerability is highly severe, requiring no authentication and having a low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. Despite its age and high severity, there is no evidence of active exploitation, readily available public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.1CPE matchmatch criteria
cpe:2.3:a:vmware:ace:1.0.1:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:vmware:gsx_server:2.0:*:*:*:*:*:*:*
2.0.1_build_2129CPE matchmatch criteria
cpe:2.3:a:vmware:gsx_server:2.0.1_build_2129:*:*:*:*:*:*:*
2.5.1CPE matchmatch criteria
cpe:2.3:a:vmware:gsx_server:2.5.1:*:*:*:*:*:*:*
2.5.1_build_5336CPE matchmatch criteria
cpe:2.3:a:vmware:gsx_server:2.5.1_build_5336:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
14.12%
Probability of exploitation in next 30 days
EPSS Percentile
96.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.1412 is in the 94th percentile among its peer group of 51,455 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

vmwarepatch availablevia nvd_reference
View patch

References

lists.grok.org.uk / pipermail/full-disclosure/2005-December/040442.html
Exploit
secunia.com / advisories/18162
PatchVendor Advisory
secunia.com / advisories/18344
Vendor Advisory
securityreason.com / securityalert/282
Third Party Advisory
securityreason.com / securityalert/289
Third Party Advisory
securitytracker.com / id
Permissions Required
gentoo.org / security/en/glsa/glsa-200601-04.xml
Third Party Advisory
kb.cert.org / vuls/id/856689
US Government Resource
securityfocus.com / archive/1/419997/100/0/threaded
Broken Link
securityfocus.com / archive/1/420017/100/0/threaded
Broken Link
securityfocus.com / bid/15998
PatchBroken Link
vmware.com / support/kb/enduser/std_adp.php
PatchBroken Link
vupen.com / english/advisories/2005/3013
URL Repurposed