CVE-2001-0168

CRITICAL ⚠ Exploit

Buffer overflow in AT&T WinVNC (Virtual Network Computing) server 3.3.3r7 and earlier allows remote attackers to execute arbitrary commands via a long HTTP GET request when the DebugLevel registry ...

Affects 1 product across 1 vendor.

CVSS 2.010.0
EPSS70.7%
Percentile99th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ AI Analysis — automated analysis, not human-reviewed

A buffer overflow vulnerability in AT&T WinVNC server versions 3.3.3r7 and earlier allows remote attackers to execute arbitrary commands through a long HTTP GET request when the DebugLevel registry key is greater than 0.

BSID: BS-2001-GLOBAL-309361-C • Model: /workspace/models/qwen2.5-coder-32b-instruct-bf16 • Confidence: HIGH

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Frequently Asked Questions
What is CVE-2001-0168?
A buffer overflow vulnerability in AT&T WinVNC server versions 3.3.3r7 and earlier allows remote attackers to execute arbitrary commands through a long HTTP GET request when the DebugLevel registry key is greater than 0.
What is the CVSS score for CVE-2001-0168?
CVE-2001-0168 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 70.7%.
Is CVE-2001-0168 actively exploited?
Public exploit available for CVE-2001-0168. Exploitation risk elevated.
How do I remediate CVE-2001-0168?
Priority: IMMEDIATE. PSIRT: [email protected]
What systems are affected by CVE-2001-0168?
CVE-2001-0168 affects Att Winvnc.
Vulnerability Details
CVE IDCVE-2001-0168
BSIDBS-2001-GLOBAL-309361-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2001-05-03
Last Modified2026-06-16
ICS Relevance0%
SourceNVD
Official Description

Buffer overflow in AT&T WinVNC (Virtual Network Computing) server 3.3.3r7 and earlier allows remote attackers to execute arbitrary commands via a long HTTP GET request when the DebugLevel registry key is greater than 0.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

The vulnerability is triggered by sending a long HTTP GET request to the WinVNC server when the DebugLevel registry key is set to a value greater than 0. This can lead to a buffer overflow, enabling the attacker to execute arbitrary commands on the affected system.

Exploitation Likelihood: CRITICAL

Affected Products
VendorProductAffected Versions
Att Winvnc ≤ 3.3.3r7
Remediation

No official vendor advisory link on record. See the CVE record →

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 9305 Days
CISA known-exploitedNot in KEV catalog
Public Exploit⚠ Available — Reference
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Model/workspace/models/qwen2.5-coder-32b-instruct-bf16
ConfidenceHIGH
Enriched At2026-05-24
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