Priority reviewHigh

CVE-2005-4459

ace, gsx server

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.

CVSS
10
EPSS
14.1%
96.2% percentile
CISA KEV
Not listed
Published
2005.12.22
PRIORITY ASSESSMENT

Priority review

FIRST EPSS indicates an elevated probability of exploitation.

Known exploitationNot established by KEV
Exploit probability14.1%
Technical severityCVSS 10

Vulnerability overview

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.

Affected product and versions

Product
ace, gsx server
Affected versions
1.0.1, 2.0, 2.0.1 build 2129, 2.5.1, 2.5.1 build 5336, 2.5.2, 3.0, 3.0 build 7592, 3.1, 3.2, 1.0.0, 3.2.1, 3.4, 4.0, 4.0.1, 4.0.2, 4.5.2, 4.5.2 build 8848, 5.0.0 build 13124
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that ace, gsx server and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
AV:N/AC:L/Au:N/C:C/I:C/A:C
CWE
CWE-119
CVE-2005-4459 — ace, gsx server | SECUFOCUS NOW