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Fencer Vulns
critical 10.0

CVE-2005-4459 in the critical feed json

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,…

published 2005-12-21 20 y ago modified 2026-07-07 4 mo ago also EUVD-2005-4454

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
14.2%
EPSS 14.2% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

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.

Patch / fix

Exploit prediction

14.24% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • lists.grok.org.uk http://lists.grok.org.uk/pipermail/full-disclosure/2005-December/040442.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.