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Fencer Vulns
medium 5.0

CVE-2005-3409 json

OpenVPN 2.x before 2.0.4, when running in TCP mode, allows remote attackers to cause a denial of service (segmentation fault) by forcing th…

published 2005-11-02 21 y ago modified 2026-06-16 4 mo ago also EUVD-2005-3408

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.5%
EPSS 2.5% chance of exploitation in 30 days, percentile 84%
public exploits
0
none known

Summary

OpenVPN 2.x before 2.0.4, when running in TCP mode, allows remote attackers to cause a denial of service (segmentation fault) by forcing the accept function call to return an error status, which leads to a null dereference in an exception handler.

Patch / fix

  • openvpn Debian 14, Debian 13, Debian 12 2.0.5-1

debian advisories DEBIAN-CVE-2005-3409

  • openvpn openSUSE Tumbleweed 2.5.3-1.2

opensuse advisories openSUSE-SU-2024:11128-1

Exploit prediction

2.50% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

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.