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CVE-2001-1422

7.5 · HIGH

WinVNC 3.3.3 and earlier generates the same challenge string for multiple connections, which allows remote attackers to bypass VNC authentication by sniffing the challenge and response of other users.

Published Jan 23, 2001attEPSS 2.06%

Overview

CVE-2001-1422 is a high-severity vulnerability affecting att winvnc. It was published on January 23, 2001 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

WinVNC 3.3.3 and earlier generates the same challenge string for multiple connections, which allows remote attackers to bypass VNC authentication by sniffing the challenge and response of other users.

Remediation

Check the references section for vendor advisories and patches from att. Update winvnc 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
attwinvnc0Affected

Frequently asked questions

What is CVE-2001-1422?

CVE-2001-1422 is a high-severity vulnerability affecting att winvnc. It was published on January 23, 2001 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2001-1422?

This vulnerability has a CVSS 2.0 base score of 7.5, 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-2001-1422?

Check the references section for vendor advisories and patches from att. Update winvnc 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-2001-1422?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2001-1422 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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