CVE-2000-0640

Guildftpd vulnerability

CVSS

7.5

EPSS

7.1%

EPSS pct

94th

Exploited

No known

Guild FTPd allows remote attackers to determine the existence of files outside the FTP root via a .. (dot dot) attack, which provides different error messages depending on whether the file exists or not.

Affected vendor

Steve Poulsen

Affected product

Guildftpd

CVSS vector

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

Published

2000-07-08

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 7.1% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2000-0640

Confirm whether Steve Poulsen Guildftpd is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2000-0640.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2000-0640

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2000-0640 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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