THREATPORT/VULNERABILITY/CVE-2001-0830
HIGH SEVERITY

CVE-2001-0830

6tunnel vulnerability

CVSS
7.5
EPSS
5.7%
EPSS pct
92th
Exploited
No known
6tunnel 0.08 and earlier does not properly close sockets that were initiated by a client, which allows remote attackers to cause a denial of service (resource exhaustion) by repeatedly connecting to and disconnecting from the server.
Affected vendor
6tunnel Project
Affected product
6tunnel
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness type (CWE)
  • CWE-772 — Missing Release of Resource after Effective Lifetime
Published
2001-12-06

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, no user interaction. Successful exploitation leads to high impact to availability.

Its EPSS score of 5.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2001-0830

  • Confirm whether 6tunnel Project 6tunnel is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2001-0830.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2001-0830

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2001-0830 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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