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Fencer Vulns
high 7.6

CVE-2001-0167 in the critical feed json

Buffer overflow in AT&T WinVNC (Virtual Network Computing) client 3.3.3r7 and earlier allows remote attackers to execute arbitrary commands…

published 2001-03-09 25 y ago modified 2026-06-16 4 mo ago also EUVD-2001-0167

cvss
7.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
50.8%
EPSS 50.8% chance of exploitation in 30 days, percentile 98%
public exploits
2
Metasploit, Exploit-DB

Summary

Buffer overflow in AT&T WinVNC (Virtual Network Computing) client 3.3.3r7 and earlier allows remote attackers to execute arbitrary commands via a long rfbConnFailed packet with a long reason string.

Patch / fix

Timeline

  1. First public exploit (Metasploit exploit/windows/vnc/realvnc_client)
  2. Published

Exploit prediction

50.81% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

CVSS scores

assigned by version score vector
NVD 2.0 7.6 AV:N/AC:H/Au:N/C:C/I:C/A:C

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.