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CVE-2001-0168

80
FAUCET Score

CVE-2001-0168 describes a critical buffer overflow vulnerability in AT&T WinVNC server versions 3.3.3r7 and earlier. This flaw allows unauthenticated remote attackers to execute arbitrary commands by sending a specially crafted, long HTTP GET request when the DebugLevel registry key is enabled. With a CVSS score of 10.0, this vulnerability presents a severe risk, enabling full compromise of affected systems with low attack complexity. While not listed on the KEV catalog, public exploit modules, including a Metasploit module, are readily available, indicating a high potential for exploitation.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.3.3r7CPE matchmatch criteria
cpe:2.3:a:att:winvnc:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

10.0HIGH

AV:N/AC:L/Au:N/C:C/I:C/A:C

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
70.73%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
Metasploit: WinVNC Web Server GET Overflow · Jan 29, 2001
ExploitDB: EDB-16491 · Dec 6, 2009
This CVE's current EPSS score of 0.7073 is in the 99th percentile among its peer group of 51,485 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

marc.info
exchange.xforce.ibmcloud.com / vulnerabilities/6026
kb.cert.org / vuls/id/598581
US Government Resource
securityfocus.com / bid/2306
PatchVendor Advisory