CVE-2005-3409
OpenVPN 2.x before 2.0.4, when running in TCP mode, allows remote attackers to cause a denial of...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2005-3409- CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:N/A:P - Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2005-3409- Updated
- 2026-11-02
EUVDEUVD-2005-3408 No score
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.
- Record
EUVD-2005-3408- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-5cc7-3r85-874q No score
OpenVPN 2.x before 2.0.4, when running in TCP mode, allows remote attackers to cause a denial of...
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.
- Record
GHSA-5cc7-3r85-874q- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2005-3409- Updated
- 2026-11-02
OSVDEBIAN-CVE-2005-3409 No score
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.
- Record
DEBIAN-CVE-2005-3409- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:11128-1 No score
openvpn-2.5.3-1.2 on GA media
These are all security issues fixed in the openvpn-2.5.3-1.2 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:11128-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
openvpnDebian:12 |
before 2.0.5-1 | 2.0.5-1 |
openvpnDebian:13 |
before 2.0.5-1 | 2.0.5-1 |
openvpnDebian:14 |
before 2.0.5-1 | 2.0.5-1 |
openvpnDebian:3.1 From an advisory covering 2 CVEs |
before 2.0-1sarge2, plus listed versions 2.0-12.0-1sarge1 |
2.0-1sarge2 |
openvpnopenSUSE:Tumbleweed From an advisory covering 10 CVEs |
before 2.5.3-1.2 | 2.5.3-1.2 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2005-3409 is a medium vulnerability (CVSS 5.0) in Openvpn, published November 2, 2005. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.50%, the 84th percentile. Fixed in openvpn 2.0.5-1.
References
secunia.com/advisories/17447
openvpn.net/changelog.html
novell.com/linux/security/advisories/2005_25_sr.html
gentoo.org/security/en/glsa/glsa-200511-07.xml
securityfocus.com/bid/15270
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osvdb.org/20416
debian.org/security/2005/dsa-885
nvd.nist.gov/vuln/detail/CVE-2005-3409
github.com/advisories/GHSA-5cc7-3r85-874q
security-tracker.debian.org/tracker/CVE-2005-3409
suse.com/security/cve/CVE-2005-3393