Lucene search
+L
Catalog
Vendors
Products
Timeline
Vulnerabilities
Sources
Documentation
Blog
Glossary
FAQ
Brand assets
Assessment
Agents dashboard
Agent Scanning
API Scanning
Assessment API
Alerts
Email notifications
Webhook notifications
Alerts API
SBOM package analysis
API Reference
Support
Settings
Sign in

CVE-2005-2531

🗓️ 24 Aug 2005 04:00:00Reported by mitreType 
cve
 cve🔗 web.nvd.nist.gov👁 86 Views

OpenVPN < 2.0.1, with "verb 0" & without TLS auth, allows remote attackers to cause denial of service

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ALT Linux		Security fix for the ALT Linux 9 package openvpn version 2.0.2-alt1
25 Aug 200500:00
–altlinux
FreeBSD		openvpn -- denial of service: client certificate validation can disconnect unrelated clients
3 Aug 200500:00
–freebsd
BDU FSTEC		Vulnerabilities of the Debian GNU/Linux operating system that allow a remote attacker to compromise the accessibility of protected information
6 Jul 201600:00
–bdu_fstec
CVE		CAN-2005-2531
9 Sep 202416:20
–cve
Cvelist		CVE-2005-2531
24 Aug 200504:00
–cvelist
Debian		[SECURITY] [DSA 851-1] New openvpn packages fix denial of service
9 Oct 200507:14
–debian
Debian CVE		CVE-2005-2531
24 Aug 200504:00
–debiancve
Tenable Nessus		Debian DSA-851-1 : openvpn - programming errors
11 Oct 200500:00
–nessus
Tenable Nessus		FreeBSD : openvpn -- denial of service: client certificate validation can disconnect unrelated clients (a51ad838-2077-48b2-a136-e888a7db5f8d)
13 May 200600:00
–nessus
Tenable Nessus		OpenVPN < 2.0.1 Multiple Vulnerabilities (Windows)
17 May 201900:00
–nessus
Rows per page
NVD
Node
OR
openvpnopenvpnMatch2.0
openvpnopenvpnMatch2.0.1_rc1
openvpnopenvpnMatch2.0.1_rc2
openvpnopenvpnMatch2.0.1_rc3
openvpnopenvpnMatch2.0.1_rc4
openvpnopenvpnMatch2.0.1_rc5
openvpnopenvpnMatch2.0.1_rc6
openvpnopenvpnMatch2.0.1_rc7
openvpnopenvpnMatch2.0_beta1
openvpnopenvpnMatch2.0_beta2
openvpnopenvpnMatch2.0_beta3
openvpnopenvpnMatch2.0_beta4
openvpnopenvpnMatch2.0_beta5
openvpnopenvpnMatch2.0_beta6
openvpnopenvpnMatch2.0_beta7
openvpnopenvpnMatch2.0_beta8
openvpnopenvpnMatch2.0_beta9
openvpnopenvpnMatch2.0_beta10
openvpnopenvpnMatch2.0_beta11
openvpnopenvpnMatch2.0_beta12
openvpnopenvpnMatch2.0_beta13
openvpnopenvpnMatch2.0_beta15
openvpnopenvpnMatch2.0_beta16
openvpnopenvpnMatch2.0_beta17
openvpnopenvpnMatch2.0_beta18
openvpnopenvpnMatch2.0_beta19
openvpnopenvpnMatch2.0_beta20
openvpnopenvpnMatch2.0_beta28
openvpnopenvpnMatch2.0_rc1
openvpnopenvpnMatch2.0_rc2
openvpnopenvpnMatch2.0_rc3
openvpnopenvpnMatch2.0_rc4
openvpnopenvpnMatch2.0_rc5
openvpnopenvpnMatch2.0_rc6
openvpnopenvpnMatch2.0_rc7
openvpnopenvpnMatch2.0_rc8
openvpnopenvpnMatch2.0_rc9
openvpnopenvpnMatch2.0_rc10
openvpnopenvpnMatch2.0_rc11
openvpnopenvpnMatch2.0_rc12
openvpnopenvpnMatch2.0_rc13
openvpnopenvpnMatch2.0_rc14
openvpnopenvpnMatch2.0_rc15
openvpnopenvpnMatch2.0_rc16
openvpnopenvpnMatch2.0_rc17
openvpnopenvpnMatch2.0_rc18
openvpnopenvpnMatch2.0_rc19
openvpnopenvpnMatch2.0_rc20
openvpnopenvpnMatch2.0_rc21
openvpnopenvpnMatch2.0_test1
openvpnopenvpnMatch2.0_test2
openvpnopenvpnMatch2.0_test3
openvpnopenvpnMatch2.0_test5
openvpnopenvpnMatch2.0_test6
openvpnopenvpnMatch2.0_test7
openvpnopenvpnMatch2.0_test8
openvpnopenvpnMatch2.0_test9
openvpnopenvpnMatch2.0_test10
openvpnopenvpnMatch2.0_test11
openvpnopenvpnMatch2.0_test12
openvpnopenvpnMatch2.0_test14
openvpnopenvpnMatch2.0_test15
openvpnopenvpnMatch2.0_test16
openvpnopenvpnMatch2.0_test17
openvpnopenvpnMatch2.0_test18
openvpnopenvpnMatch2.0_test19
openvpnopenvpnMatch2.0_test20
openvpnopenvpnMatch2.0_test21
openvpnopenvpnMatch2.0_test22
openvpnopenvpnMatch2.0_test23
openvpnopenvpnMatch2.0_test24
openvpnopenvpnMatch2.0_test26
openvpnopenvpnMatch2.0_test27
openvpnopenvpnMatch2.0_test29

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

Book a live demo
16 Jun 2026 22:15Current
6.4Medium risk
Vulners AI Score6.4
CVSS 25
EPSS0.01966
openvpncve-2005-2531tls authenticationdenial of service
86