CVE-2005-2533

NONECVSS 0.0

0.0

OpenVPN before 2.0.1, when running in "dev tap" Ethernet bridging mode, allows remote authenticated clients to cause a denial of service (memory exhaustion) via a flood of packets with a large number of spoofed MAC addresses.

CVSS v3: —
EG Score: —
EPSS: 50.5%
KEV: Not listed

Published

August 24, 2005

Last Modified

April 16, 2026

References (10)

cve@mitrehttp://openvpn.net/changelog.html
cve@mitrehttp://secunia.com/advisories/16463
cve@mitrehttp://secunia.com/advisories/17103
cve@mitrehttp://www.debian.org/security/2005/dsa-851
cve@mitrehttp://www.mandriva.com/security/advisories?name=MDKSA-2005:145
af854a3a-2127-422b-91ae-364da2661108http://openvpn.net/changelog.html
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/16463
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/17103
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2005/dsa-851
af854a3a-2127-422b-91ae-364da2661108http://www.mandriva.com/security/advisories?name=MDKSA-2005:145

Data Freshness Timeline

(refreshed 13× in last 7d / 19× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
2026-05-29 13:40 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-28 13:42 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-26 15:31 UTCOSV refresh
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2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-24 16:42 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-21 22:38 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-20 11:20 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Frequently asked(4)

What is CVE-2005-2533?

CVE-2005-2533 is a none vulnerability published on August 24, 2005. OpenVPN before 2.0.1, when running in "dev tap" Ethernet bridging mode, allows remote authenticated clients to cause a denial of service (memory exhaustion) via a flood of packets with a large number of spoofed MAC addresses.

When was CVE-2005-2533 disclosed?

CVE-2005-2533 was first published in the National Vulnerability Database on August 24, 2005, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2005-2533 actively exploited?

CVE-2005-2533 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 50.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2005-2533?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2005-2533, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2005-2533

📅 Published

🔄 Last Modified

🔗 References (10)