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Vulnerability record · CVE-2005-3393 · published 1 November 2005

CVE-2005-3393: Openvpn vulnerability

Openvpn · Openvpn

Format string vulnerability in the foreign_option function in options.c for OpenVPN 2.0.x allows remote clients to execute arbitrary code via format string specifiers in a push of the dhcp-option command option.

7.5 CVSS 2.0 High EPSS 3.5% · top 11.3%
7.5CVSS 2.0 base score
3.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
24References
16 Jun 2026Last modified by NVD

Description

Format string vulnerability in the foreign_option function in options.c for OpenVPN 2.0.x allows remote clients to execute arbitrary code via format string specifiers in a push of the dhcp-option command option.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://marc.info/?l=bugtraq&m=113081023121059&w=2
http://openvpn.net/changelog.html
http://secunia.com/advisories/17376 PatchVendor Advisory
http://secunia.com/advisories/17447
http://secunia.com/advisories/17452
http://secunia.com/advisories/17480
http://www.debian.org/security/2005/dsa-885
http://www.gentoo.org/security/en/glsa/glsa-200511-07.xml
http://www.novell.com/linux/security/advisories/2005_25_sr.html
http://www.securityfocus.com/archive/1/415487
http://www.securityfocus.com/bid/15239 Patch
http://www.vupen.com/english/advisories/2005/2255
http://marc.info/?l=bugtraq&m=113081023121059&w=2
http://openvpn.net/changelog.html
http://secunia.com/advisories/17376 PatchVendor Advisory
http://secunia.com/advisories/17447
http://secunia.com/advisories/17452
http://secunia.com/advisories/17480
http://www.debian.org/security/2005/dsa-885
http://www.gentoo.org/security/en/glsa/glsa-200511-07.xml
http://www.novell.com/linux/security/advisories/2005_25_sr.html
http://www.securityfocus.com/archive/1/415487
http://www.securityfocus.com/bid/15239 Patch
http://www.vupen.com/english/advisories/2005/2255

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2005-3393), CISA KEV, FIRST EPSS (scores of 2026-10-05). This page is refreshed as NVD updates the record.