CVE-2001-0427
7.1 · HIGHCisco VPN 3000 series concentrators before 2.5.2(F) allow remote attackers to cause a denial of service via a flood of invalid login requests to (1) the SSL service, or (2) the telnet service, whic…
Overview
CVE-2001-0427 is a high-severity vulnerability affecting cisco vpn_3000_concentrator. It was published on June 18, 2001 and has a CVSS 2.0 base score of 7.1 (HIGH).
This vulnerability has a CVSS 2.0 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical description
Cisco VPN 3000 series concentrators before 2.5.2(F) allow remote attackers to cause a denial of service via a flood of invalid login requests to (1) the SSL service, or (2) the telnet service, which do not properly disconnect the user after several failed login attempts.
Remediation
Check the references section for vendor advisories and patches from cisco. Update vpn_3000_concentrator 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
| Vendor | Product | Versions | Status |
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Frequently asked questions
What is CVE-2001-0427?
CVE-2001-0427 is a high-severity vulnerability affecting cisco vpn_3000_concentrator. It was published on June 18, 2001 and has a CVSS 2.0 base score of 7.1 (HIGH).
How severe is CVE-2001-0427?
This vulnerability has a CVSS 2.0 base score of 7.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2001-0427?
Check the references section for vendor advisories and patches from cisco. Update vpn_3000_concentrator 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-2001-0427?
CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2001-0427 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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