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Fencer Vulns
critical 10.0

CVE-2000-0833 in the critical feed json

Buffer overflow in WinSMTP 1.06f and 2.X allows remote attackers to cause a denial of service via a long (1) USER or (2) HELO command.

published 2000-10-18 26 y ago modified 2026-06-16 4 mo ago also EUVD-2000-0820

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
10.4%
EPSS 10.4% chance of exploitation in 30 days, percentile 95%
public exploits
1
Exploit-DB

Summary

Buffer overflow in WinSMTP 1.06f and 2.X allows remote attackers to cause a denial of service via a long (1) USER or (2) HELO command.

Timeline

  1. First public exploit (EDB-20221)
  2. Published

Exploit prediction

10.42% chance of exploitation in the next 30 days, higher than 95% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-20221 Jack De Winter WinSMTP 1.6 f/2.0 - Buffer Overflow dos, 2000-09-11
  • securityfocus.com http://www.securityfocus.com/bid/1680 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

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.