CVE-2011-5166
Multiple stack-based buffer overflows in KnFTP 1.0.0 allow remote attackers to execute arbitrary code via a long string to the (1) USER, (2) PASS, (3) REIN, (4) QUIT, (5) PORT, (6) PASV, (7) TYPE, (8) STRU, (9) MODE, (10) RETR, (11) STOR, (12) APPE, (13) ALLO, (14) REST, (15) RNFR, (16) RNTO, (17) ABOR, (18) DELE, (19) CWD, (20) LIST, (21) NLST, (22) SITE, (23) STST, (24) HELP, (25) NOOP, (26) MKD, (27) RMD, (28) PWD, (29) CDUP, (30) STOU, (31) SNMT, (32) SYST, and (33) XPWD commands.
Key facts
- CVSS score
- 7.5 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P- Weakness (CWE)
- CWE-119
- EPSS score
- 6.5% (94th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-5066)
- Published
- September 15, 2012
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-5066 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- elif keir / knftp
References
- http://archives.neohapsis.com/archives/bugtraq/2011-09/0015.html(Exploit)
- http://secunia.com/advisories/45907(Vendor Advisory)
- http://www.exploit-db.com/exploits/17819(Exploit)
- http://www.exploit-db.com/exploits/17856(Exploit)
- http://www.exploit-db.com/exploits/17870(Exploit)
- http://www.exploit-db.com/exploits/18089(Exploit)
- http://www.osvdb.org/75147
- https://exchange.xforce.ibmcloud.com/vulnerabilities/69557
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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