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CVE-2001-0187

37
FAUCET Score

CVE-2001-0187 describes a critical format string vulnerability in wu-ftpd versions 2.6.1 and earlier, specifically when the FTP server is running with debug mode enabled. This flaw allows unauthenticated remote attackers to execute arbitrary commands by crafting a malicious argument within a PASV port assignment. With a CVSS score of 10.0 (HIGH), the vulnerability presents a severe risk due to its network-based attack vector, low complexity, and complete compromise of confidentiality, integrity, and availability. While not listed on the KEV catalog or Hot List, public exploit code exists, indicating its potential for exploitation, though it currently lacks significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
2.4.1CPE matchmatch criteria
cpe:2.3:a:washington_university:wu-ftpd:2.4.1:*:*:*:*:*:*:*
2.4.2_beta9CPE matchmatch criteria
cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta9:*:academ:*:*:*:*:*
2.4.2_beta18CPE matchmatch criteria
cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18:*:academ:*:*:*:*:*
2.4.2_beta18_vr4CPE matchmatch criteria
cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr4:*:*:*:*:*:*:*
2.4.2_beta18_vr5CPE matchmatch criteria
cpe:2.3:a:washington_university:wu-ftpd:2.4.2_beta18_vr5:*:*:*:*:*:*:*

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
5.67%
Probability of exploitation in next 30 days
EPSS Percentile
92.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-20594 · Jan 23, 2001
This CVE's current EPSS score of 0.0567 is in the 87th 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

Vendor Advisories (1)

redhatCVE-2001-0187

CVE-2001-0187

References

ftp.wu-ftpd.org / pub/wu-ftpd/patches/apply_to_current/missing_format_strings.patch
distro.conectiva.com.br / atualizacoes
exchange.xforce.ibmcloud.com / vulnerabilities/6020
debian.org / security/2001/dsa-016
securityfocus.com / bid/2296
ExploitPatchVendor Advisory