CVE-2001-1422: n/a vulnerability

CVE-2001-1422: WinVNC 3.3.3 and earlier generates the same challenge string for multiple connections, which allows remote...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 04:58 UTC (UTC+00:00)

Security readout for executives and security teams

WinVNC 3.3.3 and earlier could reuse the same authentication challenge across connections. An attacker able to observe another user's VNC login traffic could potentially bypass authentication. This matters most where old VNC servers still provide remote desktop access to sensitive systems. Exposure is most likely in legacy environments running WinVNC 3.3.3 or earlier, especially where VNC traffic crosses shared, untrusted, or poorly segmented networks. Treat this as a legacy remote-access risk. Prioritize discovery and removal from sensitive networks, but do not assume active exploitation based on the provided sources. Mitigation focus: Inventory systems for WinVNC 3.3.3 and earlier.; Check original vendor and CERT guidance before selecting a replacement or fix.; Disable unnecessary legacy VNC services until remediation is confirmed..

Prepared: Jun 29, 2026, 23:27 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 20, 2005, 05:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
vnc-weak-authentication(5992)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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