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CVE-2005-2533

2.1 · LOW

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 numb…

Published Aug 24, 2005openvpnEPSS 0.68%

Overview

CVE-2005-2533 is a low-severity vulnerability affecting openvpn openvpn. It was published on August 24, 2005 and has a CVSS 2.0 base score of 2.1 (LOW).

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from openvpn. Update openvpn to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refopenvpn.net/changelog.htmlRefsecunia.com/advisories/16463Refsecunia.com/advisories/17103Refwww.debian.org/security/2005/dsa-851Refwww.mandriva.com/security/advisories?name=MDKSA-2005:145Refopenvpn.net/changelog.htmlRefsecunia.com/advisories/16463Refsecunia.com/advisories/17103Refwww.debian.org/security/2005/dsa-851Refwww.mandriva.com/security/advisories?name=MDKSA-2005:145

How CyberStrike helps

Frequently asked questions

What is CVE-2005-2533?

CVE-2005-2533 is a low-severity vulnerability affecting openvpn openvpn. It was published on August 24, 2005 and has a CVSS 2.0 base score of 2.1 (LOW).

How severe is CVE-2005-2533?

This vulnerability has a CVSS 2.0 base score of 2.1, rated LOW. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2005-2533?

Check the references section for vendor advisories and patches from openvpn. Update openvpn to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2005-2533?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2005-2533 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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