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CVE-2005-2534
Race condition in OpenVPN before 2.0.1, when --duplicate-cn is not enabled, allows remote attackers to cause a denial of service (server…
Low2.6EPSS 0.97%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
Race condition in OpenVPN before 2.0.1, when --duplicate-cn is not enabled, allows remote attackers to cause a denial of service (server crash) via simultaneous TCP connections from multiple clients that use the same client certificate.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low2.6 | AV:N/AC:H/Au:N/C:N/I:N/A:P |
- EPSS (exploitation in 30 days)
- 0.97% · top 38% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.6.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (6)
- 17103 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://openvpn.net/changelog.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 14610 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- MDKSA-2005:145 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- DSA-851 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 16463 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2005-2534)Record last updated .