CVE-1999-1568 json
Off-by-one error in NcFTPd FTP server before 2.4.1 allows a remote attacker to cause a denial of service (crash) via a long PORT command.
published 1999-01-01 27 y ago modified 2026-06-16 4 mo ago also EUVD-1999-1549
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.3%
- EPSS 2.3% chance of exploitation in 30 days, percentile 83%
- public exploits
- 0
- none known
Summary
Off-by-one error in NcFTPd FTP server before 2.4.1 allows a remote attacker to cause a denial of service (crash) via a long PORT command.
Patch / fix
- ncftp ncftpd_server 2.4.1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
2.32% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
-
- CWE-193 Off-by-one Error
References
-
securityfocus.com
/archive/1/12699
mailing-list, broken-link, third-party-advisory, vdb-entry
-
exchange.xforce.ibmcloud.com
/vulnerabilities/1833
vdb-entry, third-party-advisory
-
marc.info
/?l=bugtraq&m=91981352617720&w=2
mailing-list
Sources
- CVE List CVE-1999-1568
- NVD CVE-1999-1568
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