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Vulnerability record · CVE-2005-4459 · published 21 December 2005

CVE-2005-4459: Vmware ace memory buffer overflow vulnerability

Vmware · Ace

Heap-based buffer overflow in the NAT networking components vmnat.exe and vmnet-natd in VMWare Workstation 5.5, GSX Server 3.2, ACE 1.0.1, and Player 1.0 allows remote authenticated attackers, including guests, to execute arbitrary code via crafted (1) EPRT and (2) PORT FTP commands.

10.0 CVSS 2.0 High EPSS 14% · top 3.5% CWE-119 · Memory buffer overflow
10.0CVSS 2.0 base score
14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
4Affected product versions listed by NVD
26References, 2 tagged exploit
7 Jul 2026Last modified by NVD

Description

Heap-based buffer overflow in the NAT networking components vmnat.exe and vmnet-natd in VMWare Workstation 5.5, GSX Server 3.2, ACE 1.0.1, and Player 1.0 allows remote authenticated attackers, including guests, to execute arbitrary code via crafted (1) EPRT and (2) PORT FTP commands.

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

Affected products

4 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.grok.org.uk/pipermail/full-disclosure/2005-December/040442.html Exploit
http://secunia.com/advisories/18162 PatchVendor Advisory
http://secunia.com/advisories/18344 Vendor Advisory
http://securityreason.com/securityalert/282 Third Party Advisory
http://securityreason.com/securityalert/289 Third Party Advisory
http://securitytracker.com/id?1015401 Permissions Required
http://www.gentoo.org/security/en/glsa/glsa-200601-04.xml Third Party Advisory
http://www.kb.cert.org/vuls/id/856689 US Government Resource
http://www.securityfocus.com/archive/1/419997/100/0/threaded Broken Link
http://www.securityfocus.com/archive/1/420017/100/0/threaded Broken Link
http://www.securityfocus.com/bid/15998 PatchBroken Link
http://www.vmware.com/support/kb/enduser/std_adp.php?p_faqid=2000 PatchBroken Link
http://www.vupen.com/english/advisories/2005/3013 URL Repurposed
http://lists.grok.org.uk/pipermail/full-disclosure/2005-December/040442.html Exploit
http://secunia.com/advisories/18162 PatchVendor Advisory
http://secunia.com/advisories/18344 Vendor Advisory
http://securityreason.com/securityalert/282 Third Party Advisory
http://securityreason.com/securityalert/289 Third Party Advisory
http://securitytracker.com/id?1015401 Permissions Required
http://www.gentoo.org/security/en/glsa/glsa-200601-04.xml Third Party Advisory
http://www.kb.cert.org/vuls/id/856689 US Government Resource
http://www.securityfocus.com/archive/1/419997/100/0/threaded Broken Link
http://www.securityfocus.com/archive/1/420017/100/0/threaded Broken Link
http://www.securityfocus.com/bid/15998 PatchBroken Link
http://www.vmware.com/support/kb/enduser/std_adp.php?p_faqid=2000 PatchBroken Link
http://www.vupen.com/english/advisories/2005/3013 URL Repurposed

Track CVE-2005-4459 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2005-4459), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.