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CVE-2011-5166

34
FAUCET Score

CVE-2011-5166 describes multiple stack-based buffer overflows in KnFTP 1.0.0, allowing remote attackers to execute arbitrary code by sending excessively long strings to numerous FTP commands. This vulnerability carries a CVSS score of 7.5 (High), indicating a network-based attack with low complexity, requiring no authentication, and potentially leading to partial compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, exploit code and proof-of-concepts are publicly available on ExploitDB, including Metasploit modules, suggesting a high potential for exploitation despite minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.0.0CPE matchmatch criteria
cpe:2.3:a:elif_keir:knftp:1.0.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.48%
Probability of exploitation in next 30 days
EPSS Percentile
93.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-18089 · Nov 7, 2011
This CVE's current EPSS score of 0.0648 is in the 88th percentile among its peer group of 51,551 CVEs.

Social Chatter

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

archives.neohapsis.com / archives/bugtraq/2011-09/0015.html
Exploit
secunia.com / advisories/45907
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/69557
exploit-db.com / exploits/17819
Exploit
exploit-db.com / exploits/17856
Exploit
exploit-db.com / exploits/17870
Exploit
exploit-db.com / exploits/18089
Exploit
osvdb.org / 75147